fix broken links in README.md
fix broken links in README.md

seems like `building-spark.html` was renamed to `building-with-maven.html`?

Is Maven the blessed build tool these days, or SBT? I couldn't find a building-with-sbt page so I went with the Maven one here.

Author: Ryan Williams <ryan.blake.williams@gmail.com>

Closes #2859 from ryan-williams/broken-links-readme and squashes the following commits:

7692253 [Ryan Williams] fix broken links in README.md

hhbyyh/spark,aosagie/spark,shaneknapp/spark,rikima/spark,xflin/spark,narahari92/spark,darionyaphet/spark,shuangshuangwang/spark,JoshRosen/spark,apache/spark,rednaxelafx/apache-spark,map222/spark,ConeyLiu/spark,highfei2011/spark,apache/spark,milliman/spark,kiszk/spark,tengpeng/spark,byakuinss/spark,kiszk/spark,wzhfy/spark,kimoonkim/spark,liutang123/spark,mike0sv/spark,ConeyLiu/spark,aray/spark,markhamstra/spark,jkbradley/spark,ajaysaini725/spark,liyichao/spark,highfei2011/spark,mzl9039/spark,tejasapatil/spark,akopich/spark,liyichao/spark,ajaysaini725/spark,shuangshuangwang/spark,debugger87/spark,Aegeaner/spark,taroplus/spark,mahak/spark,ericvandenbergfb/spark,mzl9039/spark,apache-spark-on-k8s/spark,alunarbeach/spark,lvdongr/spark,publicRoman/spark,zuotingbing/spark,akopich/spark,wangyum/spark,wangmiao1981/spark,panfengfeng/spark,pronix/spark,xflin/spark,apache/spark,SHASHANKB/spark,icexelloss/spark,jrshust/spark,lxsmnv/spark,bdrillard/spark,narahari92/spark,wzhfy/spark,big-pegasus/spark,sureshthalamati/spark,jrshust/spark,szhem/spark,nlalevee/spark,minixalpha/spark,liyichao/spark,ddna1021/spark,ptkool/spark,big-pegasus/spark,JoshRosen/spark,saltstar/spark,LantaoJin/spark,sureshthalamati/spark,cloud-fan/spark,apache-spark-on-k8s/spark,huang1900/spark,skonto/spark,loneknightpy/spark,apache/spark,nchammas/spark,UndeadBaneGitHub/spark,kiszk/spark,shuangshuangwang/spark,sureshthalamati/spark,kevinyu98/spark,bravo-zhang/spark,ajaysaini725/spark,joseph-torres/spark,caneGuy/spark,ericvandenbergfb/spark,zhouyejoe/spark,kimoonkim/spark,poffuomo/spark,zero323/spark,WindCanDie/spark,stanzhai/spark,eyalfa/spark,ericvandenbergfb/spark,actuaryzhang/spark,dongjoon-hyun/spark,pgandhi999/spark,aosagie/spark,kissmetrics/spark,bravo-zhang/spark,ericvandenbergfb/spark,cin/spark,srowen/spark,rikima/spark,wangyum/spark,mahak/spark,sachintyagi22/spark,lvdongr/spark,jlopezmalla/spark,andrewor14/iolap,jianran/spark,ueshin/apache-spark,sachintyagi22/spark,byakuinss/spark,1haodian/spark,markhamstra/spark,JerryLead/spark,skonto/spark,ibm-research-ireland/sparkoscope,kimoonkim/spark,mahak/spark,map222/spark,ibm-research-ireland/sparkoscope,someorz/spark,zuotingbing/spark,ahnqirage/spark,liutang123/spark,hvanhovell/spark,zhouyejoe/spark,andrewor14/iolap,gioenn/xSpark,loneknightpy/spark,Aegeaner/spark,chuckchen/spark,HyukjinKwon/spark,metamx/spark,shuangshuangwang/spark,SnappyDataInc/spark,techaddict/spark,tejasapatil/spark,lxsmnv/spark,gengliangwang/spark,wangmiao1981/spark,WeichenXu123/spark,yanboliang/spark,LantaoJin/spark,highfei2011/spark,jianran/spark,byakuinss/spark,holdenk/spark,lvdongr/spark,gengliangwang/spark,byakuinss/spark,brad-kaiser/spark,pgandhi999/spark,dbtsai/spark,ueshin/apache-spark,Aegeaner/spark,loneknightpy/spark,goldmedal/spark,highfei2011/spark,icexelloss/spark,jlopezmalla/spark,dhruve/spark,mdespriee/spark,techaddict/spark,ueshin/apache-spark,big-pegasus/spark,eyalfa/spark,sachintyagi22/spark,ioana-delaney/spark,kissmetrics/spark,LantaoJin/spark,SnappyDataInc/spark,goldmedal/spark,Aegeaner/spark,poffuomo/spark,aosagie/spark,michalsenkyr/spark,hhbyyh/spark,publicRoman/spark,maropu/spark,guoxiaolongzte/spark,ioana-delaney/spark,ericvandenbergfb/spark,aray/spark,liyichao/spark,andrewor14/iolap,lvdongr/spark,nilsgrabbert/spark,jiangxb1987/spark,lxsmnv/spark,jkbradley/spark,cin/spark,pronix/spark,michalsenkyr/spark,patrick-nicholson/spark,ahnqirage/spark,techaddict/spark,techaddict/spark,dongjoon-hyun/spark,patrick-nicholson/spark,debugger87/spark,SHASHANKB/spark,rednaxelafx/apache-spark,darionyaphet/spark,rikima/spark,Panos-Bletsos/spark-cost-model-optimizer,bravo-zhang/spark,ron8hu/spark,MLnick/spark,map222/spark,mdespriee/spark,sachintyagi22/spark,publicRoman/spark,zzcclp/spark,publicRoman/spark,jrshust/spark,saltstar/spark,mdespriee/spark,vinodkc/spark,hvanhovell/spark,esi-mineset/spark,ajaysaini725/spark,minixalpha/spark,aray/spark,alunarbeach/spark,metamx/spark,jkbradley/spark,big-pegasus/spark,cloud-fan/spark,maropu/spark,ibm-research-ireland/sparkoscope,saturday-shi/spark,Panos-Bletsos/spark-cost-model-optimizer,chuckchen/spark,gengliangwang/spark,yanboliang/spark,cloud-fan/spark,witgo/spark,dbtsai/spark,saltstar/spark,nlalevee/spark,jianran/spark,spark-test/spark,techaddict/spark,panfengfeng/spark,techaddict/spark,1haodian/spark,adrian-ionescu/apache-spark,huang1900/spark,sahilTakiar/spark,gioenn/xSpark,apache/spark,brad-kaiser/spark,WindCanDie/spark,highfei2011/spark,BryanCutler/spark,ron8hu/spark,guoxiaolongzte/spark,WeichenXu123/spark,liyichao/spark,kevinyu98/spark,cloud-fan/spark,liyichao/spark,WeichenXu123/spark,saturday-shi/spark,szhem/spark,yanboliang/spark,goldmedal/spark,sahilTakiar/spark,skonto/spark,shubhamchopra/spark,joseph-torres/spark,lvdongr/spark,nilsgrabbert/spark,JoshRosen/spark,poffuomo/spark,dhruve/spark,pgandhi999/spark,dhruve/spark,andrewor14/iolap,saturday-shi/spark,mzl9039/spark,JoshRosen/spark,maropu/spark,shubhamchopra/spark,shuangshuangwang/spark,Aegeaner/spark,srowen/spark,tengpeng/spark,jrshust/spark,adrian-ionescu/apache-spark,janewangfb/spark,kevinyu98/spark,byakuinss/spark,loneknightpy/spark,map222/spark,witgo/spark,ptkool/spark,spark-test/spark,patrick-nicholson/spark,aray/spark,spark-test/spark,xuanyuanking/spark,ueshin/apache-spark,zhouyejoe/spark,1haodian/spark,dongjoon-hyun/spark,taroplus/spark,vinodkc/spark,michalsenkyr/spark,jlopezmalla/spark,brad-kaiser/spark,sureshthalamati/spark,wangyum/spark,liyichao/spark,tejasapatil/spark,vinodkc/spark,nchammas/spark,aokolnychyi/spark,facaiy/spark,tengpeng/spark,rednaxelafx/apache-spark,srowen/spark,ericvandenbergfb/spark,mzl9039/spark,icexelloss/spark,haowu80s/spark,debugger87/spark,loneknightpy/spark,andrewor14/iolap,apache-spark-on-k8s/spark,guoxiaolongzte/spark,pronix/spark,zuotingbing/spark,milliman/spark,nchammas/spark,narahari92/spark,brad-kaiser/spark,gioenn/xSpark,setjet/spark,caneGuy/spark,darionyaphet/spark,wangyum/spark,1haodian/spark,eyalfa/spark,esi-mineset/spark,lxsmnv/spark,alunarbeach/spark,SnappyDataInc/spark,bdrillard/spark,BryanCutler/spark,akopich/spark,joseph-torres/spark,liutang123/spark,esi-mineset/spark,goldmedal/spark,saltstar/spark,narahari92/spark,setjet/spark,esi-mineset/spark,caneGuy/spark,metamx/spark,adrian-ionescu/apache-spark,haowu80s/spark,SnappyDataInc/spark,nchammas/spark,taroplus/spark,xflin/spark,jkbradley/spark,markhamstra/spark,bOOm-X/spark,tejasapatil/spark,ioana-delaney/spark,panfengfeng/spark,jrshust/spark,janewangfb/spark,aosagie/spark,zero323/spark,wangyum/spark,bravo-zhang/spark,gioenn/xSpark,stanzhai/spark,actuaryzhang/spark,JoshRosen/spark,MLnick/spark,cin/spark,UndeadBaneGitHub/spark,icexelloss/spark,facaiy/spark,milliman/spark,andrewor14/spark,wangmiao1981/spark,zzcclp/spark,ConeyLiu/spark,MLnick/spark,dhruve/spark,aokolnychyi/spark,jiangxb1987/spark,skonto/spark,metamx/spark,SHASHANKB/spark,apache-spark-on-k8s/spark,zhouyejoe/spark,aosagie/spark,LantaoJin/spark,hhbyyh/spark,ibm-research-ireland/sparkoscope,spark-test/spark,bdrillard/spark,icexelloss/spark,zuotingbing/spark,kevinyu98/spark,milliman/spark,nlalevee/spark,gengliangwang/spark,ueshin/apache-spark,taroplus/spark,ptkool/spark,jianran/spark,milliman/spark,mike0sv/spark,stanzhai/spark,hvanhovell/spark,poffuomo/spark,byakuinss/spark,kissmetrics/spark,patrick-nicholson/spark,zero323/spark,esi-mineset/spark,srowen/spark,rezasafi/spark,ueshin/apache-spark,shaneknapp/spark,kimoonkim/spark,WeichenXu123/spark,MLnick/spark,map222/spark,1haodian/spark,chuckchen/spark,srowen/spark,rekhajoshm/spark,brad-kaiser/spark,publicRoman/spark,cloud-fan/spark,esi-mineset/spark,narahari92/spark,jlopezmalla/spark,apache-spark-on-k8s/spark,xflin/spark,dongjoon-hyun/spark,aokolnychyi/spark,dongjoon-hyun/spark,akopich/spark,nchammas/spark,rednaxelafx/apache-spark,xuanyuanking/spark,aray/spark,pgandhi999/spark,wzhfy/spark,someorz/spark,jkbradley/spark,Panos-Bletsos/spark-cost-model-optimizer,akopich/spark,poffuomo/spark,guoxiaolongzte/spark,szhem/spark,mahak/spark,hhbyyh/spark,Aegeaner/spark,poffuomo/spark,yanboliang/spark,joseph-torres/spark,vinodkc/spark,shaneknapp/spark,rikima/spark,kissmetrics/spark,jiangxb1987/spark,caneGuy/spark,jkbradley/spark,saturday-shi/spark,dhruve/spark,facaiy/spark,gengliangwang/spark,kimoonkim/spark,janewangfb/spark,rekhajoshm/spark,WeichenXu123/spark,yanboliang/spark,zzcclp/spark,xuanyuanking/spark,HyukjinKwon/spark,icexelloss/spark,michalsenkyr/spark,sachintyagi22/spark,rezasafi/spark,pgandhi999/spark,caneGuy/spark,ericvandenbergfb/spark,darionyaphet/spark,cin/spark,joseph-torres/spark,kiszk/spark,rekhajoshm/spark,holdenk/spark,michalsenkyr/spark,haowu80s/spark,someorz/spark,SnappyDataInc/spark,highfei2011/spark,andrewor14/spark,lvdongr/spark,zhouyejoe/spark,rikima/spark,apache/spark,JerryLead/spark,cin/spark,bOOm-X/spark,setjet/spark,maropu/spark,MLnick/spark,publicRoman/spark,zzcclp/spark,wangyum/spark,jiangxb1987/spark,gioenn/xSpark,ibm-research-ireland/sparkoscope,wangmiao1981/spark,tengpeng/spark,bdrillard/spark,witgo/spark,dhruve/spark,yanboliang/spark,markhamstra/spark,rekhajoshm/spark,nchammas/spark,ioana-delaney/spark,zzcclp/spark,debugger87/spark,wangmiao1981/spark,wangmiao1981/spark,bOOm-X/spark,HyukjinKwon/spark,zero323/spark,map222/spark,zuotingbing/spark,kiszk/spark,rezasafi/spark,hvanhovell/spark,kissmetrics/spark,dbtsai/spark,janewangfb/spark,shuangshuangwang/spark,haowu80s/spark,hhbyyh/spark,andrewor14/spark,SHASHANKB/spark,akopich/spark,UndeadBaneGitHub/spark,dbtsai/spark,setjet/spark,ahnqirage/spark,ddna1021/spark,ptkool/spark,sahilTakiar/spark,milliman/spark,guoxiaolongzte/spark,gioenn/xSpark,panfengfeng/spark,ptkool/spark,nilsgrabbert/spark,rekhajoshm/spark,stanzhai/spark,janewangfb/spark,WindCanDie/spark,spark-test/spark,saturday-shi/spark,andrewor14/spark,chuckchen/spark,skonto/spark,markhamstra/spark,nlalevee/spark,jrshust/spark,vinodkc/spark,liutang123/spark,mdespriee/spark,WindCanDie/spark,minixalpha/spark,zhouyejoe/spark,srowen/spark,alunarbeach/spark,icexelloss/spark,sachintyagi22/spark,stanzhai/spark,dbtsai/spark,kiszk/spark,eyalfa/spark,aray/spark,eyalfa/spark,ajaysaini725/spark,saltstar/spark,1haodian/spark,ConeyLiu/spark,taroplus/spark,saturday-shi/spark,nilsgrabbert/spark,actuaryzhang/spark,pronix/spark,haowu80s/spark,xuanyuanking/spark,shubhamchopra/spark,adrian-ionescu/apache-spark,LantaoJin/spark,rikima/spark,liutang123/spark,wangyum/spark,caneGuy/spark,bravo-zhang/spark,LantaoJin/spark,big-pegasus/spark,andrewor14/iolap,mike0sv/spark,darionyaphet/spark,jianran/spark,alunarbeach/spark,nilsgrabbert/spark,minixalpha/spark,map222/spark,actuaryzhang/spark,narahari92/spark,adrian-ionescu/apache-spark,pgandhi999/spark,wzhfy/spark,1haodian/spark,joseph-torres/spark,byakuinss/spark,minixalpha/spark,WindCanDie/spark,setjet/spark,srowen/spark,adrian-ionescu/apache-spark,ron8hu/spark,mzl9039/spark,UndeadBaneGitHub/spark,minixalpha/spark,huang1900/spark,apache-spark-on-k8s/spark,mike0sv/spark,HyukjinKwon/spark,witgo/spark,dbtsai/spark,poffuomo/spark,MLnick/spark,cin/spark,someorz/spark,andrewor14/iolap,alunarbeach/spark,BryanCutler/spark,rekhajoshm/spark,joseph-torres/spark,bravo-zhang/spark,rednaxelafx/apache-spark,ibm-research-ireland/sparkoscope,dhruve/spark,BryanCutler/spark,ptkool/spark,Aegeaner/spark,jlopezmalla/spark,jlopezmalla/spark,shubhamchopra/spark,zzcclp/spark,JerryLead/spark,actuaryzhang/spark,WindCanDie/spark,szhem/spark,someorz/spark,bOOm-X/spark,aosagie/spark,mike0sv/spark,ptkool/spark,guoxiaolongzte/spark,Panos-Bletsos/spark-cost-model-optimizer,UndeadBaneGitHub/spark,JoshRosen/spark,ahnqirage/spark,jlopezmalla/spark,sahilTakiar/spark,apache/spark,SHASHANKB/spark,xflin/spark,brad-kaiser/spark,ConeyLiu/spark,milliman/spark,andrewor14/spark,lxsmnv/spark,janewangfb/spark,tejasapatil/spark,aray/spark,kimoonkim/spark,andrewor14/spark,ioana-delaney/spark,kimoonkim/spark,haowu80s/spark,hvanhovell/spark,HyukjinKwon/spark,taroplus/spark,tejasapatil/spark,zuotingbing/spark,highfei2011/spark,xuanyuanking/spark,alunarbeach/spark,JoshRosen/spark,vinodkc/spark,aosagie/spark,sahilTakiar/spark,JerryLead/spark,minixalpha/spark,zhouyejoe/spark,ConeyLiu/spark,rezasafi/spark,sahilTakiar/spark,mzl9039/spark,debugger87/spark,aokolnychyi/spark,ConeyLiu/spark,xflin/spark,markhamstra/spark,wzhfy/spark,BryanCutler/spark,kevinyu98/spark,nilsgrabbert/spark,bdrillard/spark,liutang123/spark,SnappyDataInc/spark,hhbyyh/spark,Panos-Bletsos/spark-cost-model-optimizer,xuanyuanking/spark,nlalevee/spark,SHASHANKB/spark,adrian-ionescu/apache-spark,mzl9039/spark,xflin/spark,jiangxb1987/spark,publicRoman/spark,shubhamchopra/spark,actuaryzhang/spark,jiangxb1987/spark,metamx/spark,ioana-delaney/spark,mdespriee/spark,spark-test/spark,ddna1021/spark,cloud-fan/spark,rednaxelafx/apache-spark,chuckchen/spark,hvanhovell/spark,pronix/spark,dongjoon-hyun/spark,holdenk/spark,saturday-shi/spark,eyalfa/spark,saltstar/spark,andrewor14/spark,nlalevee/spark,wzhfy/spark,ron8hu/spark,hvanhovell/spark,metamx/spark,UndeadBaneGitHub/spark,maropu/spark,panfengfeng/spark,debugger87/spark,techaddict/spark,sahilTakiar/spark,UndeadBaneGitHub/spark,goldmedal/spark,setjet/spark,hhbyyh/spark,huang1900/spark,zzcclp/spark,WindCanDie/spark,kiszk/spark,ahnqirage/spark,tejasapatil/spark,gengliangwang/spark,BryanCutler/spark,MLnick/spark,zero323/spark,ajaysaini725/spark,shaneknapp/spark,guoxiaolongzte/spark,sureshthalamati/spark,SHASHANKB/spark,spark-test/spark,michalsenkyr/spark,mdespriee/spark,ajaysaini725/spark,kissmetrics/spark,michalsenkyr/spark,JerryLead/spark,SnappyDataInc/spark,dongjoon-hyun/spark,gengliangwang/spark,brad-kaiser/spark,JerryLead/spark,akopich/spark,patrick-nicholson/spark,maropu/spark,sureshthalamati/spark,metamx/spark,loneknightpy/spark,mike0sv/spark,shubhamchopra/spark,LantaoJin/spark,stanzhai/spark,szhem/spark,pgandhi999/spark,mahak/spark,panfengfeng/spark,darionyaphet/spark,JerryLead/spark,goldmedal/spark,tengpeng/spark,lxsmnv/spark,actuaryzhang/spark,markhamstra/spark,holdenk/spark,ueshin/apache-spark,big-pegasus/spark,mahak/spark,zero323/spark,caneGuy/spark,ddna1021/spark,HyukjinKwon/spark,kissmetrics/spark,rikima/spark,jianran/spark,ioana-delaney/spark,mahak/spark,debugger87/spark,holdenk/spark,someorz/spark,janewangfb/spark,szhem/spark,skonto/spark,ron8hu/spark,ddna1021/spark,xuanyuanking/spark,sachintyagi22/spark,aokolnychyi/spark,aokolnychyi/spark,gioenn/xSpark,setjet/spark,kevinyu98/spark,BryanCutler/spark,shaneknapp/spark,cin/spark,bdrillard/spark,shuangshuangwang/spark,sureshthalamati/spark,jrshust/spark,ddna1021/spark,bOOm-X/spark,dbtsai/spark,shubhamchopra/spark,vinodkc/spark,facaiy/spark,big-pegasus/spark,maropu/spark,holdenk/spark,zero323/spark,facaiy/spark,cloud-fan/spark,shaneknapp/spark,nchammas/spark,bdrillard/spark,nilsgrabbert/spark,Panos-Bletsos/spark-cost-model-optimizer,taroplus/spark,goldmedal/spark,szhem/spark,tengpeng/spark,narahari92/spark,rezasafi/spark,matthewfranglen/spark,witgo/spark,jianran/spark,darionyaphet/spark,huang1900/spark,ahnqirage/spark,nlalevee/spark,chuckchen/spark,panfengfeng/spark,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