doc: documentation mega issue sprint

[dionhaefner]

Relevant issue or PR

Fixes #489
Fixes #462
Fixes #461 (minus "guidance around composing complex pipelines with Tesseract", should we open a new issue for that?)
Fixes #452
Fixes #450
Fixes #258

Description of changes

Tons of new docs. New README, too.

Testing done

👀

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.14%. Comparing base (8c51aaf) to head (7f1a112).

❗ There is a different number of reports uploaded between BASE (8c51aaf) and HEAD (7f1a112). Click for more details.

HEAD has 25 uploads less than BASE

Flag	BASE (8c51aaf)	HEAD (7f1a112)
	32	7

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #492      +/-   ##
==========================================
- Coverage   77.91%   68.14%   -9.78%     
==========================================
  Files          31       31              
  Lines        4094     4094              
  Branches      652      652              
==========================================
- Hits         3190     2790     -400     
- Misses        639     1079     +440     
+ Partials      265      225      -40     

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[samalipio]

Looks awesome. Especially love the changes to the README/index!

[xalelax]

Is this still WIP?

[dionhaefner]

Still WIP but close to stable, so if you have feedback already let's hear it.