Tidy up metadata

ChangeLog.md

+# Changelog for sdl2-mixer
+
+## v0.3.0.0
+
+* Compatibility with GHC-9

LICENSE

-Copyright (c) 2015 Siniša Biđin
+Copyright (c) 2015 Siniša Biđin, 2021 Daniel Firth
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

package.yaml

 name:                sdl2-gfx
-version:             1.1.0.0
+version:             0.3.0.0
 git:                 https://gitlab.homotopic.tech/haskell/sdl2-gfx
 bug-reports:         https://gitlab.homotopic.tech/haskell/sdl2-gfx/issues
 license:             MIT

sdl2-gfx.cabal

@@ -5,7 +5,7 @@ cabal-version: 1.12
 -- see: https://github.com/sol/hpack
 
 name:           sdl2-gfx
-version:        1.1.0.0
+version:        0.3.0.0
 synopsis:       Haskell bindings to SDL2_gfx
 category:       Graphics, Foreign
 bug-reports:    https://gitlab.homotopic.tech/haskell/sdl2-gfx/issues