Symlinking README.lhs to README.md does not work on Windows

[rcook]

Here's how I see it:

• We want GitHub to show a nice README.md
• We want Stack/cabal to compile the same file but GHC requires that it has the .lhs file name extension
• So we create a symlink README.lhs to README.md

This works fine on Linux. Unfortunately, with Git on Windows - which does not support symlinks in the same way - Git just creates a README.lhs file containing the path to README.md. Thus, compilation fails as the file does not contain any valid Haskell code.

Proposal: swap README.lhs and README.md round: make README.lhs the file and README.md the symlink. I have verified that this fixes the build on Windows and that GitHub is happy with it.

I'll submit a PR soon.

-Richard

[rcook]

Ping.