[SPARK-20036][DOC] Note incompatible dependencies on org.apache.kafka artifacts
[SPARK-20036][DOC] Note incompatible dependencies on org.apache.kafka artifacts

## What changes were proposed in this pull request?

Note that you shouldn't manually add dependencies on org.apache.kafka artifacts

## How was this patch tested?

Doc only change, did jekyll build and looked at the page.

Author: cody koeninger <cody@koeninger.org>

Closes #17675 from koeninger/SPARK-20036.

jiangxb1987/spark,gengliangwang/spark,ueshin/apache-spark,adrian-ionescu/apache-spark,dhruve/spark,srowen/spark,spark-test/spark,witgo/spark,sureshthalamati/spark,holdenk/spark,taroplus/spark,icexelloss/spark,bdrillard/spark,bravo-zhang/spark,guoxiaolongzte/spark,adrian-ionescu/apache-spark,ericvandenbergfb/spark,actuaryzhang/spark,yanboliang/spark,WindCanDie/spark,kissmetrics/spark,HyukjinKwon/spark,markhamstra/spark,mike0sv/spark,hvanhovell/spark,panfengfeng/spark,holdenk/spark,holdenk/spark,tengpeng/spark,wangyum/spark,UndeadBaneGitHub/spark,janewangfb/spark,stanzhai/spark,highfei2011/spark,liyichao/spark,dongjoon-hyun/spark,rednaxelafx/apache-spark,map222/spark,loneknightpy/spark,poffuomo/spark,szhem/spark,bOOm-X/spark,tengpeng/spark,icexelloss/spark,WeichenXu123/spark,shubhamchopra/spark,chuckchen/spark,mzl9039/spark,spark-test/spark,mahak/spark,vinodkc/spark,MLnick/spark,ahnqirage/spark,srowen/spark,dhruve/spark,nlalevee/spark,icexelloss/spark,michalsenkyr/spark,panfengfeng/spark,alunarbeach/spark,HyukjinKwon/spark,adrian-ionescu/apache-spark,jiangxb1987/spark,michalsenkyr/spark,aokolnychyi/spark,zhouyejoe/spark,michalsenkyr/spark,Aegeaner/spark,lvdongr/spark,milliman/spark,patrick-nicholson/spark,cin/spark,ron8hu/spark,caneGuy/spark,aosagie/spark,setjet/spark,actuaryzhang/spark,poffuomo/spark,saltstar/spark,ericvandenbergfb/spark,witgo/spark,spark-test/spark,WeichenXu123/spark,debugger87/spark,kevinyu98/spark,ericvandenbergfb/spark,huang1900/spark,stanzhai/spark,nilsgrabbert/spark,highfei2011/spark,maropu/spark,liyichao/spark,kevinyu98/spark,bOOm-X/spark,witgo/spark,icexelloss/spark,rezasafi/spark,joseph-torres/spark,hhbyyh/spark,minixalpha/spark,ueshin/apache-spark,zero323/spark,poffuomo/spark,dbtsai/spark,brad-kaiser/spark,alunarbeach/spark,gengliangwang/spark,debugger87/spark,aokolnychyi/spark,xflin/spark,poffuomo/spark,zuotingbing/spark,brad-kaiser/spark,janewangfb/spark,UndeadBaneGitHub/spark,byakuinss/spark,aosagie/spark,tejasapatil/spark,techaddict/spark,rezasafi/spark,rezasafi/spark,techaddict/spark,setjet/spark,mzl9039/spark,ajaysaini725/spark,saltstar/spark,minixalpha/spark,aosagie/spark,patrick-nicholson/spark,bravo-zhang/spark,ddna1021/spark,michalsenkyr/spark,aokolnychyi/spark,alunarbeach/spark,hhbyyh/spark,goldmedal/spark,aray/spark,andrewor14/spark,rezasafi/spark,wzhfy/spark,cin/spark,eyalfa/spark,ron8hu/spark,shuangshuangwang/spark,ajaysaini725/spark,yanboliang/spark,nlalevee/spark,hvanhovell/spark,jiangxb1987/spark,brad-kaiser/spark,hvanhovell/spark,ueshin/apache-spark,stanzhai/spark,zzcclp/spark,vinodkc/spark,srowen/spark,jkbradley/spark,ioana-delaney/spark,Aegeaner/spark,BryanCutler/spark,map222/spark,byakuinss/spark,mike0sv/spark,wzhfy/spark,aokolnychyi/spark,sahilTakiar/spark,rikima/spark,stanzhai/spark,eyalfa/spark,ddna1021/spark,cin/spark,HyukjinKwon/spark,rikima/spark,xflin/spark,lvdongr/spark,bravo-zhang/spark,UndeadBaneGitHub/spark,alunarbeach/spark,pgandhi999/spark,pgandhi999/spark,WeichenXu123/spark,loneknightpy/spark,jkbradley/spark,kissmetrics/spark,poffuomo/spark,xuanyuanking/spark,shaneknapp/spark,saltstar/spark,xflin/spark,patrick-nicholson/spark,wangmiao1981/spark,huang1900/spark,someorz/spark,debugger87/spark,huang1900/spark,lvdongr/spark,WindCanDie/spark,huang1900/spark,kiszk/spark,mzl9039/spark,rikima/spark,goldmedal/spark,rezasafi/spark,BryanCutler/spark,tejasapatil/spark,dbtsai/spark,shuangshuangwang/spark,rezasafi/spark,someorz/spark,skonto/spark,sahilTakiar/spark,esi-mineset/spark,goldmedal/spark,1haodian/spark,cin/spark,BryanCutler/spark,cin/spark,skonto/spark,matthewfranglen/spark,witgo/spark,kevinyu98/spark,hhbyyh/spark,dbtsai/spark,MLnick/spark,tengpeng/spark,brad-kaiser/spark,ron8hu/spark,hvanhovell/spark,ahnqirage/spark,ConeyLiu/spark,nilsgrabbert/spark,cloud-fan/spark,map222/spark,panfengfeng/spark,SHASHANKB/spark,huang1900/spark,pgandhi999/spark,spark-test/spark,facaiy/spark,cloud-fan/spark,ajaysaini725/spark,szhem/spark,ptkool/spark,shuangshuangwang/spark,mahak/spark,saturday-shi/spark,eyalfa/spark,zhouyejoe/spark,Aegeaner/spark,ioana-delaney/spark,jkbradley/spark,1haodian/spark,andrewor14/spark,debugger87/spark,xuanyuanking/spark,mdespriee/spark,lxsmnv/spark,mike0sv/spark,someorz/spark,wzhfy/spark,saturday-shi/spark,WindCanDie/spark,hvanhovell/spark,srowen/spark,dhruve/spark,sureshthalamati/spark,cloud-fan/spark,ConeyLiu/spark,liutang123/spark,pgandhi999/spark,janewangfb/spark,yanboliang/spark,zuotingbing/spark,alunarbeach/spark,kiszk/spark,zhouyejoe/spark,sahilTakiar/spark,andrewor14/spark,loneknightpy/spark,JoshRosen/spark,sahilTakiar/spark,darionyaphet/spark,ddna1021/spark,xuanyuanking/spark,rednaxelafx/apache-spark,milliman/spark,sureshthalamati/spark,HyukjinKwon/spark,nchammas/spark,wangyum/spark,aray/spark,liutang123/spark,map222/spark,eyalfa/spark,holdenk/spark,bdrillard/spark,zzcclp/spark,wangyum/spark,pgandhi999/spark,loneknightpy/spark,WindCanDie/spark,saturday-shi/spark,bOOm-X/spark,mzl9039/spark,ptkool/spark,alunarbeach/spark,nlalevee/spa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miao1981/spark,kissmetrics/spark,zzcclp/spark,JoshRosen/spark,map222/spark,byakuinss/spark,dbtsai/spark,ueshin/apache-spark,techaddict/spark,esi-mineset/spark,dongjoon-hyun/spark,WindCanDie/spark,taroplus/spark,xflin/spark,mike0sv/spark,jrshust/spark,tejasapatil/spark,ConeyLiu/spark,markhamstra/spark,guoxiaolongzte/spark,szhem/spark,rikima/spark,maropu/spark,darionyaphet/spark,kevinyu98/spark,huang1900/spark,nilsgrabbert/spark,setjet/spark,darionyaphet/spark,xflin/spark,liyichao/spark,rekhajoshm/spark,loneknightpy/spark,nilsgrabbert/spark,nchammas/spark,highfei2011/spark,bOOm-X/spark,SHASHANKB/spark,caneGuy/spark,markhamstra/spark,poffuomo/spark,yanboliang/spark,mdespriee/spark,akopich/spark,taroplus/spark,WeichenXu123/spark,icexelloss/spark,lvdongr/spark,esi-mineset/spark,LantaoJin/spark,maropu/spark,ddna1021/spark,adrian-ionescu/apache-spark,apache/spark,liutang123/spark,ddna1021/spark,joseph-torres/spark,esi-mineset/spark,JoshRosen/spark,witgo/spark,holdenk/spark,ddna1021/spark,zhouyejoe/spark,zuotingbing/spark,MLnick/spark,shaneknapp/spark,facaiy/spark,dongjoon-hyun/spark,rednaxelafx/apache-spark,markhamstra/spark,eyalfa/spark,bdrillard/spark,chuckchen/spark,JoshRosen/spark,apache/spark,milliman/spark,aosagie/spark,tejasapatil/spark,taroplus/spark,aosagie/spark,shuangshuangwang/spark,chuckchen/spark,jrshust/spark,ron8hu/spark,kiszk/spark,srowen/spark,taroplus/spark,szhem/spark,rezasafi/spark,zuotingbing/spark,shubhamchopra/spark,zuotingbing/spark,ron8hu/spark,lvdongr/spark,aray/spark,aokolnychyi/spark,minixalpha/spark,stanzhai/spark,BryanCutler/spark,mahak/spark,szhem/spark,wzhfy/spark,jiangxb1987/spark,debugger87/spark,MLnick/spark,minixalpha/spark,LantaoJin/spark,chuckchen/spark,mike0sv/spark,aray/spark,ahnqirage/spark,milliman/spark,chuckchen/spark,sahilTakiar/spark,ahnqirage/spark,cin/spark,MLnick/spark,ajaysaini725/spark,skonto/spark,andrewor14/spark,holdenk/spark,mahak/spark,milliman/spark,rekhajoshm/spark,ajaysaini725/spark,facaiy/spark,darionyaphet/spark,nchammas/spark,byakuinss/spark,joseph-torres/spark,nlalevee/spark,vinodkc/spark,lxsmnv/spark,michalsenkyr/spark,techaddict/spark,saturday-shi/spark,markhamstra/spark,BryanCutler/spark,ericvandenbergfb/spark,wzhfy/spark,mdespriee/spark,narahari92/spark,saturday-shi/spark,skonto/spark,narahari92/spark,yanboliang/spark,hvanhovell/spark,LantaoJin/spark,liutang123/spark,bOOm-X/spark,nilsgrabbert/spark,hhbyyh/spark,highfei2011/spark,actuaryzhang/spark,guoxiaolongzte/spark,adrian-ionescu/apache-spark,kiszk/spark,guoxiaolongzte/spark,saltstar/spark,gengliangwang/spark,adrian-ionescu/apache-spark,jkbradley/spark,nchammas/spark,esi-mineset/spark,shaneknapp/spark,byakuinss/spark,zuotingbing/spark,dongjoon-hyun/spark,taroplus/spark,ioana-delaney/spark,ConeyLiu/spark,facaiy/spark,sureshthalamati/spark,JoshRosen/spark,setjet/spark,UndeadBaneGitHub/spark,caneGuy/spark,xuanyuanking/spark,setjet/spark,zuotingbing/spark,mzl9039/spark,icexelloss/spark,aray/spark,debugger87/spark,skonto/spark,dbtsai/spark,wangmiao1981/spark,Aegeaner/spark,nchammas/spark,ioana-delaney/spark,kissmetrics/spark,ConeyLiu/spark,liyichao/spark,shubhamchopra/spark,shaneknapp/spark,zero323/spark,ueshin/apache-spark,rednaxelafx/apache-spark,tengpeng/spark,ericvandenbergfb/spark,saltstar/spark,chuckchen/spark,mdespriee/spark,vinodkc/spark,JoshRosen/spark,dbtsai/spark,shaneknapp/spark,ConeyLiu/spark,wangyum/spark,andrewor14/spark,szhem/spark,cloud-fan/spark,skonto/spark,dongjoon-hyun/spark,techaddict/spark,someorz/spark,akopich/spark,panfengfeng/spark,nlalevee/spark,techaddict/spark,debugger87/spark,eyalfa/spark,kevinyu98/spark,darionyaphet/spark,narahari92/spark,joseph-torres/spark,cloud-fan/spark,skonto/spark