Update Readme.md

[chunhui01]

Description

What is the purpose of the change?

Optimize and perfect redame.md.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• [ ] This change requires a documentation update

[codecov-commenter]

Codecov Report

Merging #369 (58a8768) into master (fe456fd) will increase coverage by 0.04%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #369      +/-   ##
==========================================
+ Coverage   45.38%   45.42%   +0.04%     
==========================================
  Files         142      142              
  Lines       12458    12458              
==========================================
+ Hits         5654     5659       +5     
+ Misses       5645     5642       -3     
+ Partials     1159     1157       -2     

Impacted Files	Coverage Δ
bcs/network/p2pv2/server.go	51.33% <0.00%> (-1.07%)	:arrow_down:
bcs/consensus/xpoa/xpoa.go	53.29% <0.00%> (+2.03%)	:arrow_up:
bcs/contract/xvm/code_manager.go	66.36% <0.00%> (+2.72%)	:arrow_up:

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