Update README.md (#3709)
Update README.md (#3709)

* Update README.md

Fixing documentation links to point to actual (new) docs. 
naamunds/cli,dasMulli/cli,jonsequitur/cli,borgdylan/dotnet-cli,nguerrera/cli,johnbeisner/cli,blackdwarf/cli,AbhitejJohn/cli,AbhitejJohn/cli,weshaggard/cli,ravimeda/cli,nguerrera/cli,blackdwarf/cli,mlorbetske/cli,Faizan2304/cli,EdwardBlair/cli,livarcocc/cli-1,borgdylan/dotnet-cli,mlorbetske/cli,MichaelSimons/cli,johnbeisner/cli,ravimeda/cli,naamunds/cli,Faizan2304/cli,mlorbetske/cli,MichaelSimons/cli,borgdylan/dotnet-cli,AbhitejJohn/cli,borgdylan/dotnet-cli,Faizan2304/cli,AbhitejJohn/cli,blackdwarf/cli,harshjain2/cli,dasMulli/cli,naamunds/cli,naamunds/cli,MichaelSimons/cli,livarcocc/cli-1,jonsequitur/cli,svick/cli,dasMulli/cli,svick/cli,livarcocc/cli-1,nguerrera/cli,naamunds/cli,weshaggard/cli,blackdwarf/cli,EdwardBlair/cli,ravimeda/cli,weshaggard/cli,weshaggard/cli,jonsequitur/cli,weshaggard/cli,nguerrera/cli,johnbeisner/cli,jonsequitur/cli,MichaelSimons/cli,harshjain2/cli,mlorbetske/cli,harshjain2/cli,MichaelSimons/cli,borgdylan/dotnet-cli,svick/cli,EdwardBlair/cli