Update manual for pattern splices (#1476)
Update manual for pattern splices (#1476)

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