Fixed broken link
Fixed broken link

## What changes were proposed in this pull request?

I fixed some incorrect formatting on a link in the docs

## How was this patch tested?

I looked at the markdown preview before and after, and the link was fixed

Before:
<img width="593" alt="screen shot 2017-06-08 at 6 37 32 pm" src="https://user-images.githubusercontent.com/17733030/26956272-a62cd558-4c79-11e7-862f-9d0e0184b18a.png">
After:
<img width="587" alt="screen shot 2017-06-08 at 6 37 44 pm" src="https://user-images.githubusercontent.com/17733030/26956276-b1135ef6-4c79-11e7-8028-84d19c392fda.png">

Author: Corey Woodfield <coreywoodfield@gmail.com>

Closes #18246 from coreywoodfield/master.

SHASHANKB/spark,zhouyejoe/spark,wangyum/spark,lxsmnv/spark,holdenk/spark,esi-mineset/spark,bdrillard/spark,zero323/spark,ron8hu/spark,wangyum/spark,shubhamchopra/spark,caneGuy/spark,minixalpha/spark,byakuinss/spark,ajaysaini725/spark,zhouyejoe/spark,sahilTakiar/spark,HyukjinKwon/spark,zuotingbing/spark,brad-kaiser/spark,LantaoJin/spark,joseph-torres/spark,jiangxb1987/spark,michalsenkyr/spark,adrian-ionescu/apache-spark,jiangxb1987/spark,eyalfa/spark,ueshin/apache-spark,liyichao/spark,dbtsai/spark,ptkool/spark,zero323/spark,markhamstra/spark,zuotingbing/spark,joseph-torres/spark,sahilTakiar/spark,dongjoon-hyun/spark,narahari92/spark,saltstar/spark,icexelloss/spark,skonto/spark,nchammas/spark,pgandhi999/spark,HyukjinKwon/spark,BryanCutler/spark,ajaysaini725/spark,mike0sv/spark,markhamstra/spark,liutang123/spark,eyalfa/spark,techaddict/spark,hhbyyh/spark,nilsgrabbert/spark,dhruve/spark,witgo/spark,HyukjinKwon/spark,ajaysaini725/spark,taroplus/spark,wangmiao1981/spark,akopich/spark,lvdongr/spark,rekhajoshm/spark,nilsgrabbert/spark,jkbradley/spark,vinodkc/spark,darionyaphet/spark,jiangxb1987/spark,brad-kaiser/spark,tengpeng/spark,ddna1021/spark,xflin/spark,1haodian/spark,rekhajoshm/spark,ioana-delaney/spark,cloud-fan/spark,rekhajoshm/spark,chuckchen/spark,szhem/spark,xuanyuanking/spark,narahari92/spark,debugger87/spark,taroplus/spark,nlalevee/spark,UndeadBaneGitHub/spark,ioana-delaney/spark,BryanCutler/spark,poffuomo/spark,byakuinss/spark,joseph-torres/spark,techaddict/spark,map222/spark,aokolnychyi/spark,UndeadBaneGitHub/spark,ericvandenbergfb/spark,caneGuy/spark,brad-kaiser/spark,aray/spark,mahak/spark,ron8hu/spark,ahnqirage/spark,aray/spark,ericvandenbergfb/spark,rikima/spark,highfei2011/spark,alunarbeach/spark,rednaxelafx/apache-spark,goldmedal/spark,ahnqirage/spark,bdrillard/spark,maropu/spark,hvanhovell/spark,lxsmnv/spark,kiszk/spark,apache/spark,Aegeaner/spark,wangyum/spark,alunarbeach/spark,facaiy/spark,shubhamchopra/spark,shubhamchopra/spark,narahari92/spark,akopich/spark,ptkool/spark,techaddict/spark,bravo-zhang/spark,ConeyLiu/spark,debugger87/spark,sureshthalamati/spark,spark-test/spark,markhamstra/spark,hhbyyh/spark,lvdongr/spark,HyukjinKwon/spark,zuotingbing/spark,WindCanDie/spark,poffuomo/spark,LantaoJin/spark,liyichao/spark,ConeyLiu/spark,sureshthalamati/spark,xuanyuanking/spark,holdenk/spark,stanzhai/spark,huang1900/spark,tengpeng/spark,dongjoon-hyun/spark,maropu/spark,wangmiao1981/spark,someorz/spark,mdespriee/spark,jkbradley/spark,caneGuy/spark,mdespriee/spark,ConeyLiu/spark,nilsgrabbert/spark,hhbyyh/spark,ajaysaini725/spark,BryanCutler/spark,goldmedal/spark,minixalpha/spark,ron8hu/spark,tejasapatil/spark,xflin/spark,byakuinss/spark,someorz/spark,ahnqirage/spark,lxsmnv/spark,skonto/spark,shubhamchopra/spark,srowen/spark,rednaxelafx/apache-spark,LantaoJin/spark,debugger87/spark,ajaysaini725/spark,gengliangwang/spark,rezasafi/spark,nilsgrabbert/spark,wangmiao1981/spark,szhem/spark,1haodian/spark,kevinyu98/spark,joseph-torres/spark,nlalevee/spark,jkbradley/spark,cin/spark,maropu/spark,cloud-fan/spark,saltstar/spark,chuckchen/spark,apache/spark,actuaryzhang/spark,ddna1021/spark,vinodkc/spark,mahak/spark,aray/spark,shuangshuangwang/spark,vinodkc/spark,map222/spark,xflin/spark,ddna1021/spark,ConeyLiu/spark,tejasapatil/spark,zuotingbing/spark,wangyum/spark,highfei2011/spark,aray/spark,facaiy/spark,shaneknapp/spark,markhamstra/spark,SHASHANKB/spark,alunarbeach/spark,rezasafi/spark,cin/spark,liutang123/spark,milliman/spark,milliman/spark,eyalfa/spark,nchammas/spark,cin/spark,adrian-ionescu/apache-spark,kiszk/spark,skonto/spark,shaneknapp/spark,1haodian/spark,mike0sv/spark,hhbyyh/spark,WeichenXu123/spark,milliman/spark,ioana-delaney/spark,milliman/spark,mdespriee/spark,narahari92/spark,taroplus/spark,Aegeaner/spark,HyukjinKwon/spark,alunarbeach/spark,facaiy/spark,maropu/spark,tengpeng/spark,yanboliang/spark,zhouyejoe/spark,pgandhi999/spark,Aegeaner/spark,debugger87/spark,dongjoon-hyun/spark,sureshthalamati/spark,ConeyLiu/spark,rezasafi/spark,brad-kaiser/spark,aokolnychyi/spark,esi-mineset/spark,brad-kaiser/spark,janewangfb/spark,rednaxelafx/apache-spark,nilsgrabbert/spark,gengliangwang/spark,witgo/spark,zzcclp/spark,stanzhai/spark,someorz/spark,icexelloss/spark,aokolnychyi/spark,maropu/spark,huang1900/spark,rikima/spark,BryanCutler/spark,narahari92/spark,caneGuy/spark,srowen/spark,actuaryzhang/spark,kiszk/spark,ConeyLiu/spark,milliman/spark,xuanyuanking/spark,taroplus/spark,kiszk/spark,lvdongr/spark,shubhamchopra/spark,ioana-delaney/spark,darionyaphet/spark,WindCanDie/spark,poffuomo/spark,cin/spark,JoshRosen/spark,tengpeng/spark,mahak/spark,mahak/spark,hhbyyh/spark,kevinyu98/spark,yanboliang/spark,bdrillard/spark,jkbradley/spark,LantaoJin/spark,caneGuy/spark,darionyaphet/spark,aosagie/spark,SHASHANKB/spark,guoxiaolongzte/spark,stanzhai/spark,WeichenXu123/spark,holdenk/spark,lxsmnv/spark,brad-kaiser/spark,HyukjinKwon/spark,rikima/spark,LantaoJin/spark,zzcclp/spark,aray/spark,lvdongr/spark,kiszk/spark,mdespriee/spark,szhem/spark,eyalfa/spark,zero323/spark,ahnqirage/spark,Aegeaner/spark,skonto/spark,map222/spark,mike0sv/spark,apache/spark,stanzhai/spark,tengpeng/spark,poffuomo/spark,highfei2011/spark,zero323/spark,poffuomo/spark,dbtsai/spark,mdespriee/spark,srowen/spark,maropu/spark,mike0sv/spark,ericvandenbergfb/spark,xuanyuanking/spark,tejasapatil/spark,yanboliang/spark,UndeadBaneGitHub/spark,saturday-shi/spark,matthewfranglen/spark,witgo/spark,sahilTakiar/spark,techaddict/spark,UndeadBaneGitHub/spark,dongjoon-hyun/spark,tejasapatil/spark,techaddict/spark,lxsmnv/spark,cloud-fan/spark,hvanhovell/spark,tejasapatil/spark,wangmiao1981/spark,dhruve/spark,pgandhi999/spark,joseph-torres/spark,esi-mineset/spark,hvanhovell/spark,srowen/spark,liyichao/spark,gengliangwang/spark,guoxiaolongzte/spark,goldmedal/spark,1haodian/spark,aosagie/spark,sahilTakiar/spark,minixalpha/spark,tejasapatil/spark,vinodkc/spark,aray/spark,taroplus/spark,HyukjinKwon/spark,shubhamchopra/spark,facaiy/spark,techaddict/spark,LantaoJin/spark,darionyaphet/spark,xflin/spark,ajaysaini725/spark,joseph-torres/spark,lvdongr/spark,wzhfy/spark,ron8hu/spark,holdenk/spark,highfei2011/spark,ueshin/apache-spark,rikima/spark,jiangxb1987/spark,nlalevee/spark,saltstar/spark,LantaoJin/spark,shaneknapp/spark,rikima/spark,szhem/spark,akopich/spark,guoxiaolongzte/spark,chuckchen/spark,spark-test/spark,aosagie/spark,facaiy/spark,markhamstra/spark,dhruve/spark,xuanyuanking/spark,michalsenkyr/spark,someorz/spark,esi-mineset/spark,techaddict/spark,sureshthalamati/spark,dongjoon-hyun/spark,BryanCutler/spark,wangmiao1981/spark,darionyaphet/spark,shubhamchopra/spark,zzcclp/spark,rekhajoshm/spark,zhouyejoe/spark,spark-test/spark,poffuomo/spark,cloud-fan/spark,rednaxelafx/apache-spark,nlalevee/spark,map222/spark,ioana-delaney/spark,bdrillard/spark,ueshin/apache-spark,map222/spark,ptkool/spark,dbtsai/spark,huang1900/spark,adrian-ionescu/apache-spark,esi-mineset/spark,bdrillard/spark,rekhajoshm/spark,hvanhovell/spark,janewangfb/spark,bravo-zhang/spark,shaneknapp/spark,someorz/spark,akopich/spark,ptkool/spark,zero323/spark,Aegeaner/spark,JoshRosen/spark,wzhfy/spark,markhamstra/spark,mdespriee/spark,sureshthalamati/spark,saltstar/spark,michalsenkyr/spark,ajaysaini725/spark,BryanCutler/spark,dhruve/spark,szhem/spark,minixalpha/spark,akopich/spark,aosagie/spark,liutang123/spark,yanboliang/spark,apache/spark,nilsgrabbert/spark,ueshin/apache-spark,UndeadBaneGitHub/spark,liutang123/spark,dbtsai/spark,srowen/spark,map222/spark,hhbyyh/spark,markhamstra/spark,cloud-fan/spark,cloud-fan/spark,jiangxb1987/spark,WeichenXu123/spark,witgo/spark,wangmiao1981/spark,kevinyu98/spark,esi-mineset/spark,dbtsai/spark,adrian-ionescu/apache-spark,zero323/spark,highfei2011/spark,szhem/spark,shuangshuangwang/spark,jkbradley/spark,WindCanDie/spark,ptkool/spark,witgo/spark,janewangfb/spark,icexelloss/spark,hvanhovell/spark,ioana-delaney/spark,aokolnychyi/spark,michalsenkyr/spark,adrian-ionescu/apache-spark,aokolnychyi/spark,actuaryzhang/spark,WindCanDie/spark,gengliangwang/spark,mahak/spark,joseph-torres/spark,dongjoon-hyun/spark,skonto/spark,ddna1021/spark,WindCanDie/spark,hhbyyh/spark,huang1900/spark,WeichenXu123/spark,alunarbeach/spark,JoshRosen/spark,xuanyuanking/spark,shuangshuangwang/spark,apache/spark,WeichenXu123/spark,eyalfa/spark,zzcclp/spark,dhruve/spark,mahak/spark,debugger87/spark,xuanyuanking/spark,1haodian/spark,zhouyejoe/spark,apache/spark,stanzhai/spark,akopich/spark,nchammas/spark,janewangfb/spark,ddna1021/spark,rekhajoshm/spark,someorz/spark,WindCanDie/spark,zhouyejoe/spark,dhruve/spark,guoxiaolongzte/spark,goldmedal/spark,icexelloss/spark,aokolnychyi/spark,mdespriee/spark,dbtsai/spark,xflin/spark,narahari92/spark,kiszk/spark,zuotingbing/spark,shuangshuangwang/spark,darionyaphet/spark,minixalpha/spark,goldmedal/spark,ahnqirage/spark,aosagie/spark,ConeyLiu/spark,szhem/spark,liyichao/spark,huang1900/spark,gengliangwang/spark,narahari92/spark,actuaryzhang/spark,zuotingbing/spark,aosagie/spark,SHASHANKB/spark,ericvandenbergfb/spark,rednaxelafx/apache-spark,rezasafi/spark,highfei2011/spark,ddna1021/spark,ptkool/spark,actuaryzhang/spark,icexelloss/spark,saturday-shi/spark,saturday-shi/spark,someorz/spark,milliman/spark,spark-test/spark,adrian-ionescu/apache-spark,eyalfa/spark,eyalfa/spark,janewangfb/spark,SHASHANKB/spark,JoshRosen/spark,gengliangwang/spark,chuckchen/spark,guoxiaolongzte/spark,huang1900/spark,kevinyu98/spark,zuotingbing/spark,nlalevee/spark,WeichenXu123/spark,pgandhi999/spark,saturday-shi/spark,skonto/spark,jkbradley/spark,milliman/spark,actuaryzhang/spark,rikima/spark,adrian-ionescu/apache-spark,kevinyu98/spark,rezasafi/spark,wzhfy/spark,ron8hu/spark,sahilTakiar/spark,nchammas/spark,stanzhai/spark,minixalpha/spark,cin/spark,stanzhai/spark,nchammas/spark,lvdongr/spark,michalsenkyr/spark,ueshin/apache-spark,bdrillard/spark,bravo-zhang/spark,Aegeaner/spark,saturday-shi/spark,vinodkc/spark,byakuinss/spark,wangyum/spark,wangmiao1981/spark,minixalpha/spark,aokolnychyi/spark,nlalevee/spark,actuaryzhang/spark,maropu/spark,darionyaphet/spark,vinodkc/spark,sahilTakiar/spark,JoshRosen/spark,mike0sv/spark,rednaxelafx/apache-spark,chuckchen/spark,tengpeng/spark,nchammas/spark,wzhfy/spark,shuangshuangwang/spark,yanboliang/spark,bravo-zhang/spark,WindCanDie/spark,guoxiaolongzte/spark,rezasafi/spark,zzcclp/spark,jkbradley/spark,apache/spark,wzhfy/spark,bdrillard/spark,dhruve/spark,poffuomo/spark,nlalevee/spark,JoshRosen/spark,nilsgrabbert/spark,ahnqirage/spark,jiangxb1987/spark,UndeadBaneGitHub/spark,ron8hu/spark,skonto/spark,brad-kaiser/spark,map222/spark,akopich/spark,lvdongr/spark,michalsenkyr/spark,facaiy/spark,srowen/spark,ahnqirage/spark,zzcclp/spark,janewangfb/spark,zero323/spark,wangyum/spark,bravo-zhang/spark,facaiy/spark,chuckchen/spark,icexelloss/spark,bravo-zhang/spark,aosagie/spark,saltstar/spark,byakuinss/spark,pgandhi999/spark,JoshRosen/spark,taroplus/spark,byakuinss/spark,hvanhovell/spark,kiszk/spark,debugger87/spark,saltstar/spark,spark-test/spark,jiangxb1987/spark,michalsenkyr/spark,saturday-shi/spark,SHASHANKB/spark,wzhfy/spark,goldmedal/spark,holdenk/spark,byakuinss/spark,aray/spark,spark-test/spark,xflin/spark,liyichao/spark,nchammas/spark,1haodian/spark,spark-test/spark,shaneknapp/spark,bravo-zhang/spark,pgandhi999/spark,ericvandenbergfb/spark,saturday-shi/spark,rikima/spark,lxsmnv/spark,ron8hu/spark,liyichao/spark,kevinyu98/spark,zzcclp/spark,dbtsai/spark,yanboliang/spark,tejasapatil/spark,ueshin/apache-spark,saltstar/spark,cin/spark,mike0sv/spark,liutang123/spark,srowen/spark,ioana-delaney/spark,BryanCutler/spark,ueshin/apache-spark,ptkool/spark,pgandhi999/spark,huang1900/spark,liyichao/spark,shaneknapp/spark,ericvandenbergfb/spark,highfei2011/spark,icexelloss/spark,shuangshuangwang/spark,sureshthalamati/spark,witgo/spark,taroplus/spark,wzhfy/spark,liutang123/spark,dongjoon-hyun/spark,vinodkc/spark,SHASHANKB/spark,caneGuy/spark,goldmedal/spark,esi-mineset/spark,witgo/spark,tengpeng/spark,alunarbeach/spark,yanboliang/spark,shuangshuangwang/spark,cloud-fan/spark,rednaxelafx/apache-spark,xflin/spark,debugger87/spark,caneGuy/spark,zhouyejoe/spark,gengliangwang/spark,mike0sv/spark,kevinyu98/spark,UndeadBaneGitHub/spark,hvanhovell/spark,alunarbeach/spark,ddna1021/spark,janewangfb/spark,sahilTakiar/spark,liutang123/spark,rekhajoshm/spark,chuckchen/spark,lxsmnv/spark,1haodian/spark,WeichenXu123/spark,sureshthalamati/spark,shaneknapp/spark,holdenk/spark,guoxiaolongzte/spark,cin/spark,holdenk/spark,wangyum/spark,mahak/spark,rezasafi/spark,Aegeaner/spark,ericvandenbergfb/spark