[WIP] Fix issue with empty folders after zip extraction

[Copilot]

Fix Empty Folders When Downloading as ZIP

The issue is that the lib-* and zhtp directories are Git submodules that reference external repositories. When users download the repository as a .zip file from GitHub, these directories appear empty because submodule contents are not included in .zip downloads.

Plan:

• Analyze the issue and identify root cause (Git submodules)
• Update README.md to add clear documentation about submodules
• Add a dedicated "Installation" or "Getting Started" section with proper clone instructions
• Include troubleshooting section for the .zip download issue
• Provide alternative solutions for users who downloaded .zip files
• Verify the documentation is clear and comprehensive

Original prompt

okm hwne i dl the code in a .zip file they are all enpty at the folder level after i extract the files from the .zip why and how can i fix tyhis?

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