README.md: mention which plugins require Limnoria.

[SKIP CI]
ChannelStatus: add Limnoria requirement to README.md.

[SKIP CI]
GitHub: README: mention Limnoria requirement. Closes #197 .

[SKIP CI]
Glob2Chan: mention Limnoria requirement in README.

[SKIP CI]
LimnoriaChan: mention Limnoria requirement in README.md.

[SKIP CI]
WebDoc: mention Limnoria requirement in README.

[SKIP CI]
WebLogs: mention Limnoria requirement in README.

[SKIP CI]
Website: mention that this plugin requires Limnoria in README.

[SKIP CI]
WebStats: merge README & README.txt & call them as README.md

& add Limnoria requirement.

[SKIP CI]
Mass rename README.txt --> README.md .

[SKIP CI]
.gitignore: add README.txt .

[SKIP CI]
LinkRelay: sync config with Relay

Please see https://github.com/TkTech/notifico/issues/79

* > There is a difference between a NOTICE to a channel and a NOTICE to a user, every client should be able to correctly display notices to a channel. ~~ @Dav1dde

* > They should, but they don't. ~~ @Mkaysi

* > That's besides the point. There are a lot of clients that do handle it properly, and if they don't then that's not notifico's fault, that's their own fault. ~~ @sckasturi
LinkRelay/config.py: use PRIVMSG with non-PRIVMSG.

The world isn't ready for NOTICE yet, but there are many other things
wrong with the world too. Maybe some day.