promote links to file assets unless we already know they are pages #1354
  Add this suggestion to a batch that can be applied as a single commit.
  This suggestion is invalid because no changes were made to the code.
  Suggestions cannot be applied while the pull request is closed.
  Suggestions cannot be applied while viewing a subset of changes.
  Only one suggestion per line can be applied in a batch.
  Add this suggestion to a batch that can be applied as a single commit.
  Applying suggestions on deleted lines is not supported.
  You must change the existing code in this line in order to create a valid suggestion.
  Outdated suggestions cannot be applied.
  This suggestion has been applied or marked resolved.
  Suggestions cannot be applied from pending reviews.
  Suggestions cannot be applied on multi-line comments.
  Suggestions cannot be applied while the pull request is queued to merge.
  Suggestion cannot be applied right now. Please check back later.
  
    
  
    
closes #639
Note: in #639 Mike mentions “remove
.md”, which I take as a suggestion that we might want a link to[page.md](page.md)to be considered as a link to the page.With this PR I don't apply that change, and instead a link to
[page.md](page.md)results in a file asset with the source markdown. If that is not what we want, then we could add.mdto the skip list.I also wonder if we need to treat
a[href][download]as always linking to a file?