Open
Description
For the record, we still need to implement markdown output for a wider range of types.
Currently some types can generate parsing warnings. For example
```elm {m}
myFunction : List ( Int, Int )
myFunction =
[ ( 1, 2 ) ]
```
generates the warning : Could not parse "[(1,2)]" (litvis:expression-value)
highlighting the entire code block.
We should also test against those examples listed in #13 and #14.
If this isn't fixable in the short term, we should probably generate a more beginner friendly and correct warning (the problem isn't with the contents of the function, but the output type of the code block) such as Markdown output not supported for this type. Could you use 'raw' (or 'r') output instead?