[MINOR][R] fix R project description
[MINOR][R] fix R project description

## What changes were proposed in this pull request?

update as per this NOTE when running CRAN check

```
The Title field should be in title case, current version then in title case:
‘R Front end for 'Apache Spark'’
‘R Front End for 'Apache Spark'’

```

Closes #24255 from felixcheung/rdesc.

Authored-by: Felix Cheung <fd68b5404b021a07e5ec5abdeb1b0ffe8f04e45b@hotmail.com>
Signed-off-by: Dongjoon Hyun <9b02cb7e37158797a8e22c559f7c5f5ecd28ea57@apple.com>

icexelloss/spark,pgandhi999/spark,jiangxb1987/spark,zzcclp/spark,shuangshuangwang/spark,actuaryzhang/spark,wangyum/spark,actuaryzhang/spark,shaneknapp/spark,wangmiao1981/spark,taroplus/spark,zero323/spark,skonto/spark,apache/spark,kevinyu98/spark,mahak/spark,hvanhovell/spark,zuotingbing/spark,cloud-fan/spark,dongjoon-hyun/spark,ptkool/spark,srowen/spark,spark-test/spark,nchammas/spark,jkbradley/spark,vinodkc/spark,icexelloss/spark,zzcclp/spark,pgandhi999/spark,srowen/spark,JoshRosen/spark,apache/spark,ptkool/spark,skonto/spark,witgo/spark,LantaoJin/spark,rezasafi/spark,milliman/spark,nchammas/spark,highfei2011/spark,ueshin/apache-spark,rednaxelafx/apache-spark,icexelloss/spark,shuangshuangwang/spark,HyukjinKwon/spark,taroplus/spark,JoshRosen/spark,mahak/spark,spark-test/spark,aosagie/spark,BryanCutler/spark,nchammas/spark,HyukjinKwon/spark,spark-test/spark,wzhfy/spark,nchammas/spark,mahak/spark,witgo/spark,milliman/spark,ptkool/spark,pgandhi999/spark,shaneknapp/spark,witgo/spark,wzhfy/spark,bdrillard/spark,JoshRosen/spark,ConeyLiu/spark,zero323/spark,bdrillard/spark,aosagie/spark,darionyaphet/spark,goldmedal/spark,apache/spark,maropu/spark,ueshin/apache-spark,caneGuy/spark,actuaryzhang/spark,dongjoon-hyun/spark,gengliangwang/spark,maropu/spark,WeichenXu123/spark,wzhfy/spark,milliman/spark,ueshin/apache-spark,nchammas/spark,shuangshuangwang/spark,bdrillard/spark,icexelloss/spark,actuaryzhang/spark,rednaxelafx/apache-spark,aosagie/spark,srowen/spark,shaneknapp/spark,icexelloss/spark,srowen/spark,dbtsai/spark,matthewfranglen/spark,chuckchen/spark,zzcclp/spark,rednaxelafx/apache-spark,witgo/spark,spark-test/spark,vinodkc/spark,wzhfy/spark,rezasafi/spark,WeichenXu123/spark,mahak/spark,wangmiao1981/spark,rednaxelafx/apache-spark,zuotingbing/spark,ptkool/spark,kiszk/spark,kevinyu98/spark,dongjoon-hyun/spark,vinodkc/spark,cloud-fan/spark,mahak/spark,zzcclp/spark,techaddict/spark,hvanhovell/spark,JoshRosen/spark,zuotingbing/spark,skonto/spark,dbtsai/spark,apache/spark,WeichenXu123/spark,maropu/spark,cloud-fan/spark,JoshRosen/spark,ptkool/spark,jiangxb1987/spark,rednaxelafx/apache-spark,jkbradley/spark,cloud-fan/spark,highfei2011/spark,jiangxb1987/spark,LantaoJin/spark,xuanyuanking/spark,caneGuy/spark,aosagie/spark,holdenk/spark,darionyaphet/spark,wangmiao1981/spark,shaneknapp/spark,rednaxelafx/apache-spark,chuckchen/spark,cloud-fan/spark,LantaoJin/spark,goldmedal/spark,milliman/spark,LantaoJin/spark,rezasafi/spark,aosagie/spark,pgandhi999/spark,zzcclp/spark,kevinyu98/spark,zero323/spark,dongjoon-hyun/spark,srowen/spark,gengliangwang/spark,aosagie/spark,vinodkc/spark,zero323/spark,jiangxb1987/spark,spark-test/spark,hvanhovell/spark,maropu/spark,goldmedal/spark,caneGuy/spark,xuanyuanking/spark,taroplus/spark,techaddict/spark,holdenk/spark,BryanCutler/spark,chuckchen/spark,wangyum/spark,gengliangwang/spark,vinodkc/spark,BryanCutler/spark,highfei2011/spark,chuckchen/spark,pgandhi999/spark,ConeyLiu/spark,bdrillard/spark,wangyum/spark,aosagie/spark,kiszk/spark,zuotingbing/spark,milliman/spark,icexelloss/spark,skonto/spark,zuotingbing/spark,wangyum/spark,hvanhovell/spark,holdenk/spark,kiszk/spark,taroplus/spark,maropu/spark,hvanhovell/spark,jkbradley/spark,mahak/spark,taroplus/spark,zero323/spark,maropu/spark,dongjoon-hyun/spark,WeichenXu123/spark,cloud-fan/spark,goldmedal/spark,kiszk/spark,ptkool/spark,apache/spark,caneGuy/spark,wzhfy/spark,LantaoJin/spark,zuotingbing/spark,zero323/spark,bdrillard/spark,ConeyLiu/spark,vinodkc/spark,rezasafi/spark,zzcclp/spark,shuangshuangwang/spark,gengliangwang/spark,ptkool/spark,spark-test/spark,shuangshuangwang/spark,caneGuy/spark,icexelloss/spark,techaddict/spark,jkbradley/spark,wangyum/spark,vinodkc/spark,xuanyuanking/spark,caneGuy/spark,ConeyLiu/spark,chuckchen/spark,dbtsai/spark,wangmiao1981/spark,techaddict/spark,ConeyLiu/spark,maropu/spark,WeichenXu123/spark,kevinyu98/spark,xuanyuanking/spark,LantaoJin/spark,shuangshuangwang/spark,skonto/spark,zzcclp/spark,JoshRosen/spark,HyukjinKwon/spark,shaneknapp/spark,nchammas/spark,skonto/spark,jkbradley/spark,kiszk/spark,holdenk/spark,BryanCutler/spark,goldmedal/spark,mahak/spark,HyukjinKwon/spark,LantaoJin/spark,ConeyLiu/spark,shuangshuangwang/spark,kevinyu98/spark,taroplus/spark,witgo/spark,bdrillard/spark,wangmiao1981/spark,holdenk/spark,dbtsai/spark,wzhfy/spark,HyukjinKwon/spark,darionyaphet/spark,apache/spark,techaddict/spark,spark-test/spark,hvanhovell/spark,rezasafi/spark,gengliangwang/spark,ueshin/apache-spark,srowen/spark,wzhfy/spark,HyukjinKwon/spark,darionyaphet/spark,holdenk/spark,HyukjinKwon/spark,apache/spark,rednaxelafx/apache-spark,rezasafi/spark,zero323/spark,gengliangwang/spark,JoshRosen/spark,highfei2011/spark,wangyum/spark,kevinyu98/spark,jkbradley/spark,darionyaphet/spark,jkbradley/spark,dbtsai/spark,caneGuy/spark,nchammas/spark,rezasafi/spark,milliman/spark,ueshin/apache-spark,skonto/spark,xuanyuanking/spark,cloud-fan/spark,pgandhi999/spark,actuaryzhang/spark,pgandhi999/spark,gengliangwang/spark,bdrillard/spark,witgo/spark,xuanyuanking/spark,wangmiao1981/spark,goldmedal/spark,dongjoon-hyun/spark,darionyaphet/spark,highfei2011/spark,jiangxb1987/spark,darionyaphet/spark,kiszk/spark,BryanCutler/spark,kiszk/spark,taroplus/spark,dbtsai/spark,milliman/spark,WeichenXu123/spark,ueshin/apache-spark,srowen/spark,jiangxb1987/spark,witgo/spark,shaneknapp/spark,wangmiao1981/spark,wangyum/spark,xuanyuanking/spark,dongjoon-hyun/spark,ConeyLiu/spark,jiangxb1987/spark,WeichenXu123/spark,kevinyu98/spark,ueshin/apache-spark,actuaryzhang/spark,goldmedal/spark,holdenk/spark,BryanCutler/spark,highfei2011/spark,highfei2011/spark,BryanCutler/spark,dbtsai/spark,hvanhovell/spark,chuckchen/spark,zuotingbing/spark,actuaryzhang/spark,shaneknapp/spark,techaddict/spark,chuckchen/spark,techaddict/spark