Release Notes v1.3

Renamed Document

• git-install-steps.md: Renamed installGit.md to git-install-steps.md for clarity.

Removed Special Characters

• Fix: Removed ^M characters from various files (xxx.md).

Added Document

• git-diff-usage.md: Added new document git-diff-usage.md to provide usage guidelines for git diff.

This is just a basic example.

Full Changelog: zalebool/git-frequent-commands@v1.2...v1.3