feat: add documentation contribution guidelines (#2)

Author: GuyWhoCode

src/content/docs/gcs/documentation.md

@@ -0,0 +1,25 @@
+---
+title: Contributing to Documentation
+sidebar:
+  order: 1
+---
+
+## Format of Documentation
+The documentation is written in Markdown, where its syntax can be found here: [Markdown Guide](https://www.markdownguide.org/basic-syntax/).
+The documentation is structured in a way that each section is a separate Markdown file, which can be found in the `src/content/docs` directory.
+The different sub-team documentations can be found in their respective directories.
+Each file should have a blurb at the top, which is used to generate the sidebar and the page title.
+
+## How to Contribute
+To contribute to the documentation, you can follow these steps:
+1. Clone the repository to your local machine.
+2. Navigate to the `src/content/docs` directory.
+3. Create a new branch for your changes.
+4. Create or edit the Markdown files as needed.
+- Note, when creating a new file, make sure to include the blurb at the top of the file.
+```
+---
+title: [Title here without brackets]
+description: [Description here without brackets]
+---
+```