Modify './README.md' by adding "Sample issue" at the bottom of the existing content with an example of a issue to add a content to a README file specifying the path in the content of the issue example.
Given the above content as a README file. Add a description of how to create a sample issue and an example of an issue at the bottom of the file './README.md.'
Change the './_docs/index.md' to replace the current documentation to be the documentation page of AIPR, which is about a Github Action to solve issues using ChatGPT.
Change the content of the './README.md' file adding an initial documentation about this project AIPR, a Github Action to create automated Pull requests from Issues created and labeled with AIPR, or by making a comment "Create PR with AIPR π"
Based on the repository info https://github.com/alexanmtz/AIPR, describe the steps to setup this action in your project and the sample yml file and general instructions about how Github Action works.