Improve documentation of defaulting rules with OverloadedStrings
Improve documentation of defaulting rules with OverloadedStrings

See #9206

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