[refactor] use git patch show different solution

[ronething]

• remove other branches, keep master

[ronething]

• only need one commit with git patch

[ronething]

• first, we can squash commits to one commit,
• second, we can create patch for each other branches through idea/goland.

[ronething]

• add doc.md

[ronething]

https://github.com/cloud-org/edge-proxy/commit/345c5f6bc646e4227d996d20ec2b88af348b691a