Suggestion of change & suggestion of adding `classes`

[Toma400]

First of all, browsing through this repo yesterday and searching libs for terminal section, I noticed NimCx website is broken. After a quick browse I found out they moved to this URL, or it is fork of NimCx - either way, it is working, so current URL should be replaced or entry removed.

Aside of that, I found out Awesome Nim list misses some really great lib classes - adding Python-like classes. Here is its GitHub.