Dead Links fix, added categories, added !TODO.md

[ralf1307]

No description provided.

[apmorton]

Thanks for the effort.

I am suspect of all the internal linkfixes.
I think some will still be broken after your changes due to the "wikilink" part at the end of them.

I will try to manually apply one of these and see if the link works before applying this whole PR.

EDIT: looks like GitHub pages ignores that part entirely, so it should be fine.

I notice you have the draft tag on this PR - are you done adding commits?

[ralf1307]

Im replacing all the broken hyperlinks.
my fork: https://ralf1307.github.io/Free60-Wiki/

[ralf1307]

hello

[apmorton]

Will look over changes and merge if you are ready, just give the say so

[ralf1307]

I think Im ready.

[apmorton]

Thanks!

[ralf1307]

lol, i messed up with the issues #2 and #3