[Feature]: Allow Users to Access Human-Readable Changelogs

[garrettmflynn]

@CodyCBakerPhD and I had an interesting discussion about human-readable changelogs during our last meeting, which prompted some ideas about how to handle change updates for users.

If we enable auto-update, it would be ideal for users to have a narrative description of the latest changes rather than simply encouraged to review the CHANGELOG.md file. This could be achieved by a blog on the NWB GUIDE documentation.

We also discussed a possible need for persistent versioning, though this seems more like an alternative approach to the blog.

[CodyCBakerPhD]

@rly Persistent versioning of docs came up in last meeting, were you going to try to implement that?

[CodyCBakerPhD]

I've also noticed in a lot of other desktop applications, one of the fields in the top selector (place where we usually find the dev console and such) says something about 'view changelog' and they are usually very human readable

[CodyCBakerPhD]

This was added as apart of #760