https://www.youtube.com/watch?v=KyGfapLpWhY&list=PLuHgQVnccGMA8iwZwrGyNXCGy2LAAsTXk
/mnt/1T-5e7/mycodehtml/vcs/egoing/015_how_to_use_gistory/main.html
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pip install gistory
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Move to a working directory which has .git directory and run
gistory
Copy port_number and paste following address on the browser
localhost:port_number
Then, you will explore history contents of ".git" directory