Add some more detail to the README

[yakov116]

@jaywcjlove I am still in middle and have some questions. Will follow up later

[codecov-io]

Codecov Report

Merging #103 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #103   +/-   ##
======================================
  Coverage    83.9%   83.9%           
======================================
  Files           1       1           
  Lines         174     174           
======================================
  Hits          146     146           
  Misses         28      28

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[coveralls]

Pull Request Test Coverage Report for Build 171

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 70.942%

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Totals
Change from base Build 170:	0.0%
Covered Lines:	146
Relevant Lines:	174

---

💛 - Coveralls

[jaywcjlove]

@yakov116 thx! 👍

[yakov116]

@jaywcjlove I had some questions should I open a new PR?

[jaywcjlove]

@yakov116 You can open a new PR and you need to merge the upstream code. Otherwise there will be conflicts.

You can refer to the link below.

https://github.com/jaywcjlove/git-tips/tree/6c5f566d98b3fe11c88789975867eef1c319a2db#%E5%90%8C%E6%AD%A5fork%E7%9A%84%E4%B8%8A%E6%B8%B8%E4%BB%93%E5%BA%93