tweak documentation of mdo/rec
tweak documentation of mdo/rec

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