Update docs for POS taggers
Update docs for POS taggers

nvoron23/TextBlob,IrisSteenhout/TextBlob,Windy-Ground/TextBlob,sloria/TextBlob,adelq/TextBlob,laugustyniak/TextBlob,sargam111/python,jonmcoe/TextBlob,jcalbert/TextBlob,beni55/TextBlob,freakynit/TextBlob,dipeshtech/TextBlob