docs: Added links to tutorial notebooks in the documentation

[fg-mindee]

This PR introduces the following modifications:

• adds a notebooks folder that will reference all notebooks to be displayed in the documentation
• added a symlink in sphinx documentation to use this README to generate an identical page in the documentation
• added corresponding sphinx deps to handle tables

Here is how the corresponding documentation page renders:

Closes #558

Any feedback is welcome!

[codecov]

Codecov Report

Merging #619 (43c2845) into main (3a26c94) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #619   +/-   ##
=======================================
  Coverage   96.18%   96.18%           
=======================================
  Files         111      111           
  Lines        4296     4300    +4     
=======================================
+ Hits         4132     4136    +4     
  Misses        164      164           

Flag	Coverage Δ
unittests	96.18% <ø> (+<0.01%)	⬆️

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Impacted Files	Coverage Δ
doctr/datasets/doc_artefacts.py	94.11% <0.00%> (+0.78%)	⬆️

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[felixdittrich92]

Looks great 👍
But can you add the .render() method also in your example notebook ? :)

[fg-mindee]

Looks great +1 But can you add the .render() method also in your example notebook ? :)

Thanks for the suggestion, I plan on making a notebook about Document elements, and I intended to keep that for this purpose to avoid throwing to much information for a "quick tour" ;)

[charlesmindee]

Thanks!