docs: add tools and processes docs

docs/onboarding-guide/contribute-to-docs.md

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+---
+title: Contribute to docs
+weight: 70
+---
+
+## Contribute to docs
+
+There are several ways to request your first AsyncAPI docs task:
+
+1. **Connect with a docs maintainer:** Ask for a `good-first-issue` in the `#13_docs` channel of the [AsyncAPI Slack](https://www.asyncapi.com/slack-invite) workspace. 
+2. **Update current docs:** Surf the existing documentation, look for `typos`, `grammar`, `errors`, create an issue, and submit a Pull Request. 
+3. **Propose new docs:** If you have any ideas or suggestions for necessary documentation, [create a new docs issue](https://github.com/asyncapi/website/issues/new?labels=%F0%9F%93%91+docs&projects=&template=docs.yml&title=%5B%F0%9F%93%91+Docs%5D%3A+) and propose yourself as the assignee. 

docs/onboarding-guide/tools-and-setup.md

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+---
+title: Tools and setup
+weight: 60
+---
+
+## Tools for technical writers
+
+Technical writer contributors need the following tools to contribute to AsyncAPI documentation effectively:
+
+- A laptop or desktop computer capable of running the tools necessary to contribute to the project.
+- Stable internet access to clone the project repository, submit contributions, and stay updated on project changes.
+- A [GitHub](https://github.com) account. AsyncAPI hosts all its project's source code and documentation on GitHub. You'll need a GitHub account to create issues, fork the repository, submit pull requests, and more. If you're new to GitHub, familiarize yourself with [basic GitHub functionalities and workflows](https://docs.github.com/en/get-started).
+- A code editor, such as [VS Code](https://code.visualstudio.com), capable of handling Markdown files.
+- [Git](https://git-scm.com), a version control system.
+
+## Setup your AsyncAPI local environment
+1. Fork the repository by clicking the `Fork` option on the top right of the main repository.
+
+2. Open Command Prompt on your local computer.
+
+3. Clone the forked repository by adding your GitHub username instead of `<username>`.
+   For multiple contributions, follow the [proper configuration of a forked AsyncAPI repo](https://github.com/asyncapi/community/blob/master/git-workflow.md).
+
+```bash
+    git clone https://github.com/<username>/website/
+```
+
+4. Navigate to the website directory.
+
+```bash
+    cd website
+```
+
+5. Install all website dependencies. 
+
+```bash
+    npm install
+```
+
+6. Run the website locally.
+
+```bash
+    npm run dev
+```
+
+7. Access the live development server at [localhost:3000](http://localhost:3000).