Add README for Private.coffee website project

Introduced a README file to provide basic documentation for the
Private.coffee website. This includes instructions on setting up a
development environment, running the site locally, and the licensing
information, thereby facilitating easier onboarding and contribution to
the project. The README ensures clarity on the project's structure which
is centered around a Flask application using a `services.json`
configuration.

README.md

@@ -0,0 +1,24 @@
+# Private.coffee Website
+
+This is the source code for the [Private.coffee](https://private.coffee) 
+website.
+
+It is a simple Flask application that generates the HTML for the website based
+on the services defined in the `services.json` file.
+
+## Development
+
+To run the website locally, you will need to have Python 3 installed. Then, you
+can install the dependencies and run the website with the following commands:
+
+```bash
+pip install -r requirements.txt
+python main.py
+```
+
+The website will be available at `http://localhost:9810`.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE)
+file for details.