Added RTD setup files

[atteggiani]

• Added RTD config
• Added link-checking
• Updated ci.yml to prevent it from running when only files related to documentation are changed

My admin permissions can be revoked now (please leave write permissions).

Note:
The current failure of the link-checker is due to the main branch not containing the documentation folder yet.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.98%. Comparing base (0f47ae9) to head (7508889).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #21   +/-   ##
=======================================
  Coverage   95.98%   95.98%           
=======================================
  Files           5        5           
  Lines         224      224           
  Branches       34       34           
=======================================
  Hits          215      215           
  Misses          3        3           
  Partials        6        6           

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[dougiesquire]

LGTM - thanks @atteggiani

[atteggiani]

I'm thinking this comment applies to this repo as well.

What do you think?

[dougiesquire]

I'm thinking this comment applies to this repo as well.

What do you think?

Does it? I don't think there's any existing docs in this repo so it's not currently deploying to Github pages right?

[atteggiani]

I'm thinking this comment applies to this repo as well.
What do you think?

Does it? I don't think there's any existing docs in this repo so it's not currently deploying to Github pages right?

Oops you're right! No problems for this repo then!
I'll go on and merge. The link-checker fails due to the new page added (similar to another case you asked me about some days ago) and can be disregarded.