📝 Documentate how to build the doc

docs/CHANGELOG.md

@@ -12,6 +12,9 @@
 
 - ([218](https://github.com/Gunivers/Bookshelf/pull/218)) Enhanced speed of factorial function in `bs.math`.
 
+### 📄 Documentation
+- ([215](https://github.com/Gunivers/Bookshelf/issues/215)) There is now documentation about the documentation (kind of metadocumentation?).
+
 ---
 
 ## 📦 Bookshelf - 2.1.0

docs/contribute/documentation.md

@@ -0,0 +1,50 @@
+---
+html_theme.sidebar_secondary.remove: true
+---
+
+# 📝 Documentation
+
+The primary objective of Bookshelf is to streamline the datapack development process and ensure accessibility. To achieve this, it is crucial that the library is thoroughly documented.
+We have dedicated significant effort to creating this comprehensive documentation website.
+Moreover, we request that every new feature contribution be accompanied by appropriate documentation.
+
+This page aims to give some information on how to contribute to the documentation itself.
+
+## ⚙️ Install the required tools
+
+Bookshelf documentation requires Python.
+If you are not familiar with this programming language, don't worry, you don't have to use it.
+But to be able to build the documentation locally, you still need to install it.
+For that, you can download version 3.12 or higher on the [Python website](https://www.python.org/downloads/).
+After having installed Python and cloned the Bookshelf repository, navigate to the `/docs` folder and open a terminal (or Powershell if you are on Windows).
+Then, execute this command:
+
+```shell
+pip install -r requirements.txt -U
+```
+
+This command will install all the required dependencies, especially [Sphinx](https://www.sphinx-doc.org/en/master/) and [Myst Parser](https://myst-parser.readthedocs.io/en/latest/intro.html) that enable the generation of the documentation website from the different Markdown files.
+
+## ✍️ Write the documentation
+
+The documentation is mainly written in Markdown, extended by Myst Parser.
+You can find the documentation of Myst Parser [here](https://myst-parser.readthedocs.io/en/latest/intro.html).
+To write a new documentation page or to document a new feature, you can simply take as example the existing pages/features.
+
+All the images are stored into the `/docs/_imgs` folder.
+
+## 🔨 Build the documentation locally
+
+To ensure your documentation contribution works correctly, you can build and verify it locally on your computer.
+To do this, navigate to the `/docs` folder and open a terminal (or Powershell if you are on Windows).
+Then, execute this command:
+
+```shell
+# For Windows:
+./make html
+# For other OSs:
+make html
+```
+
+You can now find the built documentation inside the `/docs/_build/html` folder.
+Open the `index.html` with your browser to see your changes.

docs/contribute/index.md

@@ -31,6 +31,7 @@ nomenclature
 shared-data
 file-format
 metadata
+documentation
 contribution-validation
 ````