support literate haskell

[silky]

at the moment, when i run it on a literate haskell file it fails with

glance-exe: fromParseResult: Parse failed at [/home/noon/dev/literate-readme/README.lhs] (9:1): Parse error: #
CallStack (from HasCallStack):
  error, called at src/Language/Haskell/Exts/ParseMonad.hs:80:41 in haskell-src-exts-1.17.1-CHFwoWxepXQKBbAz4YNlQX:Language.Haskell.Exts.ParseMonad

might be nice to support literate haskell :)

[rgleichman]

Thank you for trying out Glance. Is this the file you are attempting to run it on? https://github.com/silky/literate-readme/blob/master/README.md

[silky]

yep, that was it!