Add .md to the "most common filetypes"

[cheatfreak47]

*.md is what No-Intro uses, so it's extremely common as well
thanks

[Alcaro]

Sure, why not

[cheatfreak47]

Wow, you're rather prompt.
I was also going to suggest publishing releases in the GitHub releases section as well, but that's up to you obviously.

Thanks for the addition.

[Alcaro]

Releases are published at SMW Central.

There hasn't been a release since I created this repo, so technically I do publish all releases that exist.

I don't really like the idea of adding additional steps to the release process, but perhaps it's worth it. If I remember it when it's time to release the next one.