Merge pull request #36 from input-output-hk/erikd/readme

Remove non-existant README.md from cabal file

Author: coot

typed-protocols/typed-protocols.cabal

@@ -13,7 +13,7 @@ maintainer:          alex@well-typed.com, duncan@well-typed.com, marcin.szamotul
 category:            Control
 build-type:          Simple
 tested-with:         GHC == {8.10, 9.2, 9.4, 9.6}
-extra-source-files:  CHANGELOG.md, README.md
+extra-source-files:  CHANGELOG.md
 
 library
   exposed-modules:   Network.TypedProtocol