Clarify comments about the ProgramDb Read/Show/Binary instances
Clarify comments about the ProgramDb Read/Show/Binary instances

headprogrammingczar/cabal,gbaz/cabal,garetxe/cabal,Heather/cabal,randen/cabal,themoritz/cabal,Heather/cabal,bennofs/cabal,martinvlk/cabal,lukexi/cabal,thomie/cabal,edsko/cabal,thomie/cabal,mydaum/cabal,edsko/cabal,bennofs/cabal,themoritz/cabal,gbaz/cabal,headprogrammingczar/cabal,lukexi/cabal,themoritz/cabal,kolmodin/cabal,sopvop/cabal,mydaum/cabal,randen/cabal,garetxe/cabal,sopvop/cabal,sopvop/cabal,martinvlk/cabal,kolmodin/cabal