docs: reorganize autocommit command sections in README

Add autocommit push feature to stage, commit, and push changes

Update autocommit command to stage_and_commit

Reorder variable declaration in auto_commit.lua

Update auto_commit.lua to remove temporary file after generating commit suggestion

Add autocommit add_and_commit command to README

Remove user prompt for listing src dir from auto_commit.lua

Update license to Unlicense and add add_and_commit action

docs: enhance README with detailed documentation and badges

docs: add autocommit commit command to README

Add README with installation and usage instructions for Auto Commit

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