Change Documentation template on RTD

[sphamba]

Prework

• [x] I understand and agree to this repository's code of conduct.
• [x] I understand and agree to this repository's contributing guidelines.
• [ ] I have already submitted an issue or discussion thread to discuss my idea with the maintainers.

What kind of change does this PR introduce? (check at least one)

• [ ] Bugfix
• [ ] Feature
• [x] Documentation
• [ ] Tutorial
• [ ] Code style update
• [ ] Refactor
• [ ] Build-related changes
• [ ] Other, please describe:

Does this PR introduce a breaking change? (check one)

• [ ] Yes
• [x] No

If yes, please describe the impact and communicate accordingly:

The PR fulfills these requirements:

• [ ] It's submitted to the branch named as follow :
  • Fix a bug: bugfix-<some_key>-<word>
  • Improve the doc: doc-<some_key>-<word>
  • Improve a tutorial tutorial-<some_key>-<word>
  • Add a new feature: feature-<some_key>-<word>
  • Refactor some code: refactor-<some_key>-<word>
  • Optimize some code: optimize-<some_key>-<word>
• [ ] When resolving a specific issue, it's referenced in the PR's title (e.g. fix #xxx[,#xxx], where "xxx" is the issue number)
• [ ] Don't forget to link PR to issue if you are solving one.
• [x] All tests are passing.
• [ ] New/updated tests are included

If adding a new feature, the PR's description includes:

• [ ] A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information:

Related GitHub issues and pull requests

• Ref: #

Summary

• Switched to "book" sphinx theme
• Add link button to Github repo

See on Readthedocs

[coveralls]

coverage: 0.138%. remained the same when pulling 696596a0398f4af58b03fc60cfa9e031efd3e635 on EPFL-ENAC:feat-doc-template into 636e118c0ef5824d7410ec696e05d8db71fd0d82 on ghiggi:main.

[ghiggi]

Beautiful ! Thanks a lot ! We can adopt this also for the other repositories (and disdrodb :smile:) Also add the automatic API generation as in this repo ;)