feat(doc) move documentation and init sphinx build

[jmkerloch]

closes #14

To build new documentation:

# install aditionnal dependencies
python -m pip install -U -r requirements/documentation.txt
# build it
sphinx-build -b html docs docs/_build

Missing (see #28):

• add myst_substitutions in documentation/conf.py for repository definition (repo_url, author, ...)
• update some .md files that refers to source code => use of repo_url

[lgrd]

The main readme.md is not ok. It has to be updated ( l.41 for example).

[lgrd]

I'm doing some tests and I will review your PR today. ;) @jmkerloch

[lgrd]

Could you create an issue for the missing tasks, please ? ^^

[jmkerloch]

Issue for missing info in conf.py : https://github.com/IGNF/road2/issues/28

[lgrd]

$ python -m pip install -U -r requirements/documentation.txt
Collecting myst-parser[linkify]<0.19,>=0.17 (from -r requirements/documentation.txt (line 4))
  Could not find a version that satisfies the requirement myst-parser[linkify]<0.19,>=0.17 (from -r requirements/documentation.txt (line 4)) (from versions: )
No matching distribution found for myst-parser[linkify]<0.19,>=0.17 (from -r requirements/documentation.txt (line 4))

Do you have an idea of what is really missing ?