Support links in Changelog

[amcclain]

It would be very helpful to support links to changelog entries, especially since the syntax and formatting supported by the log itself is so minimal. This could allow entries to link off to issue tracking systems, wikis, etc. for more detailed explanations and feature guides.

Note that what we can do here will be largely determined by what the changelog-parser lib supports. This option looks relevant, although would need to look closely at the output to see how links are processed, as well as any other markdown syntax that might be used:

https://github.com/hypermodules/changelog-parser#removemarkdown

See here for where we parse the changelog by calling this library:

hoist-dev-utils/configureWebpack.js

Line 233 in 293e0ed

// Parse CHANGELOG.md and write to tmp .json file, if requested. Write fallback file if disabled

Note that it might be helpful to call the library directly to see / iterate on the output with different options, instead of restarting an app every time.