fixed readme.md present in documentation

[JAK0707]

docs: Improve documentation for context menus, macros, register, and panning blocks (#2403)

Summary

This PR improves the documentation for context menus, macros, register, and panning blocks. Initially, these changes were added to the Guide, but based on feedback, they have now been moved to documentation/README.md, which is a more appropriate location for technical documentation.

Changes Introduced

• Moved documentation from the Guide to documentation/README.md as per mentor feedback.
• Context Menus: Added explanation on how to use context menus for block actions.
• Improved Help Strings: Enhanced descriptions and tooltips for better user understanding.
• Macros: Documented the process of creating and using macros for automation.
• Register Block: Explained how it modifies the octave of following notes.
• Panning Block: Added details on controlling stereo sound positioning.

Why This Is Needed

• Improves documentation structure by placing technical details in the appropriate section.
• Enhances user guidance and understanding of these features.
• Addresses issue Add more documentation for some context menus #2403.

Testing Steps

1. Review the updated documentation/README.md file for clarity.
2. Verify that the documentation correctly explains each feature.
3. Ensure all descriptions align with existing UI elements and functionalities.

Related Issue

Closes #2403.

[JAK0707]

Hi @walterbender,

I've updated the PR based on your feedback and moved the documentation from the Guide to documentation/README.md as suggested. Let me know if this placement works or if any further adjustments are needed.

Thank you for your guidance!