Additional features

[GenieTim]

This PR adds three more features and fixes one small typo. Thank you very much for this project, I like the design and idea very much!

[rosswintle]

Hmm... this is my first time accepting contributions like this. So sorry if this is a stupid question:

I can't push some tweaks back to the contribution. Have you got the "Allow edits from maintainers" turned off?

See: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork

Thanks

[GenieTim]

@rosswintle I am sorry, it seems that checkbox does not exist as I accidentally seem to have forked the repo as an organisation.

See isaacs/github#1681 and https://git.luolix.topmunity/t/how-can-we-enable-allow-edits-from-maintainers-by-default/2847/8 and whatwg/html#3881 (comment) as to why I think this is the case.

Would it help if I gave you maintainer access to my fork? Or shall I push and PR again from a private fork?

[rosswintle]

Don't worry - I'll fix my end somehow. Thanks!

[rosswintle]

Will merge this and then add on #17 (if you want to see how I modified it).

Key things:

• Backticks didn't work in descriptions (this is fixed in Add additional features - copy of PR/14 #17)
• Ordering of items (I'm putting newest at the top)
• Some tweaks to the text and resoruce links.

Thanks for getting this researched and added!