[MINOR][SS][DOCS] Update doc for streaming deduplication
[MINOR][SS][DOCS] Update doc for streaming deduplication

### What changes were proposed in this pull request?

This patch fixes an error about streaming dedupliaction is Structured Streaming, and also updates an item about unsupported operation.

### Why are the changes needed?

Update the user document.

### Does this PR introduce _any_ user-facing change?

No. It's a doc only change.

### How was this patch tested?

Doc only change.

Closes #33801 from viirya/minor-ss-deduplication.

Authored-by: Liang-Chi Hsieh <d24118b4297e1ecf0c990d6935f5f9e6e4fd7701@gmail.com>
Signed-off-by: Liang-Chi Hsieh <d24118b4297e1ecf0c990d6935f5f9e6e4fd7701@gmail.com>

holdenk/spark,JoshRosen/spark,xuanyuanking/spark,vinodkc/spark,nchammas/spark,cloud-fan/spark,wangyum/spark,JoshRosen/spark,taroplus/spark,nchammas/spark,hvanhovell/spark,holdenk/spark,wangyum/spark,srowen/spark,srowen/spark,witgo/spark,shaneknapp/spark,zero323/spark,witgo/spark,WeichenXu123/spark,xuanyuanking/spark,HyukjinKwon/spark,apache/spark,witgo/spark,hvanhovell/spark,WeichenXu123/spark,JoshRosen/spark,vinodkc/spark,vinodkc/spark,zero323/spark,witgo/spark,holdenk/spark,xuanyuanking/spark,WeichenXu123/spark,wangyum/spark,nchammas/spark,ueshin/apache-spark,witgo/spark,HyukjinKwon/spark,gengliangwang/spark,wangyum/spark,WeichenXu123/spark,nchammas/spark,xuanyuanking/spark,shaneknapp/spark,taroplus/spark,cloud-fan/spark,apache/spark,taroplus/spark,shaneknapp/spark,chuckchen/spark,zzcclp/spark,mahak/spark,mahak/spark,HyukjinKwon/spark,taroplus/spark,mahak/spark,holdenk/spark,gengliangwang/spark,vinodkc/spark,chuckchen/spark,xuanyuanking/spark,srowen/spark,srowen/spark,WeichenXu123/spark,chuckchen/spark,hvanhovell/spark,dongjoon-hyun/spark,taroplus/spark,gengliangwang/spark,ueshin/apache-spark,ueshin/apache-spark,dongjoon-hyun/spark,HyukjinKwon/spark,zzcclp/spark,xuanyuanking/spark,zero323/spark,rednaxelafx/apache-spark,srowen/spark,xuanyuanking/spark,zero323/spark,chuckchen/spark,zero323/spark,apache/spark,wangyum/spark,gengliangwang/spark,hvanhovell/spark,dongjoon-hyun/spark,zzcclp/spark,apache/spark,zero323/spark,srowen/spark,dongjoon-hyun/spark,holdenk/spark,hvanhovell/spark,zzcclp/spark,mahak/spark,shaneknapp/spark,ueshin/apache-spark,rednaxelafx/apache-spark,mahak/spark,rednaxelafx/apache-spark,zzcclp/spark,WeichenXu123/spark,hvanhovell/spark,wangyum/spark,gengliangwang/spark,chuckchen/spark,HyukjinKwon/spark,zzcclp/spark,cloud-fan/spark,WeichenXu123/spark,mahak/spark,rednaxelafx/apache-spark,vinodkc/spark,cloud-fan/spark,HyukjinKwon/spark,shaneknapp/spark,vinodkc/spark,ueshin/apache-spark,shaneknapp/spark,ueshin/apache-spark,apache/spark,rednaxelafx/apache-spark,shaneknapp/spark,cloud-fan/spark,HyukjinKwon/spark,wangyum/spark,apache/spark,JoshRosen/spark,cloud-fan/spark,nchammas/spark,zzcclp/spark,hvanhovell/spark,rednaxelafx/apache-spark,dongjoon-hyun/spark,dongjoon-hyun/spark,cloud-fan/spark,chuckchen/spark,gengliangwang/spark,witgo/spark,zero323/spark,holdenk/spark,apache/spark,vinodkc/spark,srowen/spark,taroplus/spark,taroplus/spark,gengliangwang/spark,mahak/spark,witgo/spark,JoshRosen/spark,chuckchen/spark,JoshRosen/spark,holdenk/spark,rednaxelafx/apache-spark,ueshin/apache-spark,JoshRosen/spark,nchammas/spark,dongjoon-hyun/spark,nchammas/spark