The change to `render_markdown_path` in `app_filters.py` was
required because for bitbucket2, `integrations.name` is
`bitbucket2`, which is substituted for the stream name in our
Markdown macros. It didn't make sense to recommend the name
`bitbucket2` as a default stream name to our users (for them,
it's just bitbucket). However, the URL is still
`api/v1/external/bitbucket2`.
Eeshan Garg