README clarification

[TheWilley]

In an attempt to make this docker image more approachable, you can make small tweaks to the README file. Some things I noticed during my installations attempts:

• The line - /path/to/nginx:/etc/nginx:ro in the Docker Compose example can be slightly confusing. According to the official documentation, you should map a configuration file from the host to the Docker container like this: /host/path/nginx.conf:/etc/nginx/nginx.conf:ro. However, the example suggests mapping a folder instead, which is something you shouldn't do. To avoid confusion, you can update this line in the example to match the official documentation's approach, making it clear that we are looking for a configuration file.
• For those who are not familiar with Nginx, there's a chance they might not realize that the server attribute in the example configuration file should be placed within the http section of an Nginx configuration file, something I discovered the hard way. To provide clarity, you can add a note in the documentation to highlight that the server attribute belongs within the http section of the Nginx configuration file.

Please tell me if there's anything I've misunderstood.

[mwalbeck]

You're very much spot on with your feedback, and I've made the changes you suggested. Thank you!

Cheers!