Documentation bugs (matrix works with https, matrix bot needs to be in unencrypted room)

[hillbicks]

Hi There,

first of all thanks for the application, really useful!

I found two issues with the documentation:

1. The wiki page for matrix still mentions that only http is supported, but as mentioned in #31 it actually works

2. More importantly, the bot apparently only works if the matrix room is not encrypted, otherwise it can't read the messages it seems. Just tested it with an encrypted and unencrypted room.

Thanks!