[Suggestion] Toggle Read-Only Mode

[kittrellbj]

Just a small request/suggestion for the next build perhaps.

It would be very nice to be able to turn off edit mode or toggle between Read and Edit modes. Sometimes I'm only reading a Markdown for documentation, so I want to guard against accidental edits on docs and clicking around through a Markdown inside the application can cause contextual changes (like clicking a link expands the URL rather than a GET to that link).