Documentation Improvement: Explain Actions Cache Limitations

[grasmarcussanti129]

Description

In the README, there is a TODO note referencing the integration of actions/cache for a Pull Request workflow, but it lacks an explanation of why users should utilize it and what limitations they might encounter. This information is crucial for users to understand the context and potential pitfalls of using the caching mechanism.

Suggested Improvement

Add a dedicated section under the Sample: Create Pull Request comment that:

1. Explains the purpose of using actions/cache in this scenario.
2. Clearly lists its limitations, including any potential issues related to cache size, cache invalidation, or caching of sensitive files that users should be aware of.

This addition will provide clarity and help users make informed decisions when integrating the diffuse-action in their workflows.