/doc will not generate README for modules/folders that are a part of the project. Previously would only generate for the opened folder. Cleaned up folder selection UX and text.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Description

• Check the folder to ensure it is a part of the project
• Show correct error message if the folder is not in the project
• Allow the user to choose a different folder if it is not a part of the project

Checklist

• My code follows the code style of this project
• I have added tests to cover my changes
• A short description of the change has been added to the CHANGELOG if the change is customer-facing in the IDE.
• I have added metrics for my changes (if required)

License

I confirm that my contribution is made under the terms of the Apache 2.0 license.