Fix documentation of FlexibleContexts (#8574)
Fix documentation of FlexibleContexts (#8574)

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