Update docs for "set prompt2"
Update docs for "set prompt2"

elieux/ghc,mcschroeder/ghc,lukexi/ghc,nushio3/ghc,sdiehl/ghc,gridaphobe/ghc,bitemyapp/ghc,fmthoma/ghc,acowley/ghc,jstolarek/ghc,nushio3/ghc,ml9951/ghc,elieux/ghc,nushio3/ghc,shlevy/ghc,nathyong/microghc-ghc,spacekitteh/smcghc,holzensp/ghc,hferreiro/replay,holzensp/ghc,olsner/ghc,frantisekfarka/ghc-dsi,oldmanmike/ghc,vTurbine/ghc,anton-dessiatov/ghc,mcschroeder/ghc,TomMD/ghc,oldmanmike/ghc,mcschroeder/ghc,oldmanmike/ghc,vikraman/ghc,ml9951/ghc,nushio3/ghc,GaloisInc/halvm-ghc,forked-upstream-packages-for-ghcjs/ghc,green-haskell/ghc,ml9951/ghc,lukexi/ghc-7.8-arm64,forked-upstream-packages-for-ghcjs/ghc,fmthoma/ghc,oldmanmike/ghc,tibbe/ghc,TomMD/ghc,wxwxwwxxx/ghc,wxwxwwxxx/ghc,tjakway/ghcjvm,lukexi/ghc-7.8-arm64,vikraman/ghc,AlexanderPankiv/ghc,spacekitteh/smcghc,da-x/ghc,TomMD/ghc,tibbe/ghc,anton-dessiatov/ghc,christiaanb/ghc,ezyang/ghc,hferreiro/replay,green-haskell/ghc,nathyong/microghc-ghc,anton-dessiatov/ghc,mettekou/ghc,nushio3/ghc,spacekitteh/smcghc,gridaphobe/ghc,ghc-android/ghc,fmthoma/ghc,christiaanb/ghc,da-x/ghc,nkaretnikov/ghc,christiaanb/ghc,elieux/ghc,lukexi/ghc,acowley/ghc,acowley/ghc,gridaphobe/ghc,frantisekfarka/ghc-dsi,da-x/ghc,ezyang/ghc,mettekou/ghc,snoyberg/ghc,mcschroeder/ghc,vikraman/ghc,siddhanathan/ghc,mfine/ghc,TomMD/ghc,AlexanderPankiv/ghc,elieux/ghc,mfine/ghc,urbanslug/ghc,sgillespie/ghc,snoyberg/ghc,jstolarek/ghc,jstolarek/ghc,GaloisInc/halvm-ghc,siddhanathan/ghc,da-x/ghc,gcampax/ghc,gcampax/ghc,ezyang/ghc,GaloisInc/halvm-ghc,mcschroeder/ghc,mfine/ghc,nathyong/microghc-ghc,snoyberg/ghc,da-x/ghc,ryantm/ghc,anton-dessiatov/ghc,urbanslug/ghc,lukexi/ghc-7.8-arm64,tjakway/ghcjvm,spacekitteh/smcghc,ryantm/ghc,sgillespie/ghc,nathyong/microghc-ghc,nkaretnikov/ghc,vikraman/ghc,AlexanderPankiv/ghc,siddhanathan/ghc,wxwxwwxxx/ghc,shlevy/ghc,mettekou/ghc,nathyong/microghc-ghc,wxwxwwxxx/ghc,ghc-android/ghc,forked-upstream-packages-for-ghcjs/ghc,oldmanmike/ghc,nkaretnikov/ghc,sdiehl/ghc,sdiehl/ghc,lukexi/ghc-7.8-arm64,wxwxwwxxx/ghc,siddhanathan/ghc,mcschroeder/ghc,snoyberg/ghc,TomMD/ghc,mfine/ghc,vTurbine/ghc,nkaretnikov/ghc,holzensp/ghc,tibbe/ghc,sdiehl/ghc,green-haskell/ghc,sgillespie/ghc,sgillespie/ghc,gcampax/ghc,GaloisInc/halvm-ghc,nkaretnikov/ghc,ryantm/ghc,AlexanderPankiv/ghc,sgillespie/ghc,gcampax/ghc,sdiehl/ghc,ezyang/ghc,GaloisInc/halvm-ghc,gridaphobe/ghc,siddhanathan/ghc,ghc-android/ghc,acowley/ghc,lukexi/ghc,tibbe/ghc,olsner/ghc,tibbe/ghc,green-haskell/ghc,sdiehl/ghc,sgillespie/ghc,ekmett/ghc,acowley/ghc,oldmanmike/ghc,bitemyapp/ghc,fmthoma/ghc,bitemyapp/ghc,ekmett/ghc,forked-upstream-packages-for-ghcjs/ghc,GaloisInc/halvm-ghc,vTurbine/ghc,shlevy/ghc,da-x/ghc,anton-dessiatov/ghc,jstolarek/ghc,ghc-android/ghc,sdiehl/ghc,GaloisInc/halvm-ghc,urbanslug/ghc,mettekou/ghc,siddhanathan/ghc,frantisekfarka/ghc-dsi,mfine/ghc,mfine/ghc,hferreiro/replay,acowley/ghc,nushio3/ghc,snoyberg/ghc,hferreiro/replay,elieux/ghc,acowley/ghc,lukexi/ghc,urbanslug/ghc,ezyang/ghc,wxwxwwxxx/ghc,tjakway/ghcjvm,elieux/ghc,fmthoma/ghc,olsner/ghc,ghc-android/ghc,holzensp/ghc,ghc-android/ghc,olsner/ghc,hferreiro/replay,mettekou/ghc,gcampax/ghc,gridaphobe/ghc,ml9951/ghc,christiaanb/ghc,forked-upstream-packages-for-ghcjs/ghc,ml9951/ghc,vikraman/ghc,fmthoma/ghc,mfine/ghc,olsner/ghc,vikraman/ghc,hferreiro/replay,vikraman/ghc,urbanslug/ghc,AlexanderPankiv/ghc,spacekitteh/smcghc,christiaanb/ghc,bitemyapp/ghc,da-x/ghc,frantisekfarka/ghc-dsi,anton-dessiatov/ghc,jstolarek/ghc,vTurbine/ghc,shlevy/ghc,lukexi/ghc-7.8-arm64,fmthoma/ghc,TomMD/ghc,oldmanmike/ghc,shlevy/ghc,tjakway/ghcjvm,nathyong/microghc-ghc,urbanslug/ghc,ekmett/ghc,elieux/ghc,tjakway/ghcjvm,ryantm/ghc,urbanslug/ghc,holzensp/ghc,olsner/ghc,snoyberg/ghc,gridaphobe/ghc,AlexanderPankiv/ghc,gridaphobe/ghc,green-haskell/ghc,siddhanathan/ghc,nkaretnikov/ghc,ekmett/ghc,gcampax/ghc,frantisekfarka/ghc-dsi,ryantm/ghc,olsner/ghc,bitemyapp/ghc,forked-upstream-packages-for-ghcjs/ghc,vTurbine/ghc,hferreiro/replay,ezyang/ghc,AlexanderPankiv/ghc,christiaanb/ghc,nushio3/ghc,nathyong/microghc-ghc,mcschroeder/ghc,mettekou/ghc,christiaanb/ghc,ekmett/ghc,vTurbine/ghc,TomMD/ghc,mettekou/ghc,snoyberg/ghc,ml9951/ghc,ml9951/ghc,wxwxwwxxx/ghc,ghc-android/ghc,lukexi/ghc,gcampax/ghc,shlevy/ghc,sgillespie/ghc,tjakway/ghcjvm,ezyang/ghc,shlevy/ghc,forked-upstream-packages-for-ghcjs/ghc,nkaretnikov/ghc,ml9951/ghc,anton-dessiatov/ghc,tjakway/ghcjvm,vTurbine/ghc