Add changelog to docs

[FabioRosado]

We are still talking about the changelog in #1060, but we may be inclined to start by writing it manually.

This PR adds the changelog.md file under the root of our docs/ and also adds the link to the header.

We could also move the changelog outside the docs and link it to github if you think that's better 😄

[JeffersGlass]

Personally I like the Changelog living in the Docs, but that's just me!

Would it be possible to link to the PR's that create the listed changes? Just something I find handy when looking at others' changelog, makes it easy to jump to the PR for more context/info.

[FabioRosado]

Yeah that's a good idea I was wondering if we should 😄

Do you think we should add the contributor name as well?

In another project we do something like:

• Fixed all the bugs @JeffersGlass (Configure Renovate #1)

[JeffersGlass]

I don't feel strongly one way or the other about adding contributor names, to be honest.

[FabioRosado]

Just pushed a commit to include the PR link 😄

[marimeireles]

I'm +1 for adding people's handles as an extra form of crediting them for their work, but also no strong opinions. I was copying another project changelog's I like :)
Thanks for implementing it Fabio! ✨

[marimeireles]

I think we should add a string to our CONTRIBUTING.MD just to inform people they should add a line in the CHANGELOG + maybe some light recommendations as I outlined in the issue.
Cheers and thanks!

[FabioRosado]

I think we should add a string to our CONTRIBUTING.MD just to inform people they should add a line in the CHANGELOG + maybe some light recommendations as I outlined in the issue.
Cheers and thanks!

Thanks that's a great idea! Let me push a commit with that 😄