docs(project): highlight version

[tpoisonooo]

Motivation

highlight version problem.

Modification

update readme.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit tests to ensure the correctness.
3. If the modification has a dependency on downstream projects of a newer version, this PR should be tested with all supported versions of downstream projects.
4. The documentation has been modified accordingly, like docstring or example tutorials.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (12a1302) 44.30% compared to head (bfd0c0f) 44.30%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1871   +/-   ##
=======================================
  Coverage   44.30%   44.30%           
=======================================
  Files         356      356           
  Lines       12786    12786           
  Branches     1817     1817           
=======================================
  Hits         5665     5665           
  Misses       6725     6725           
  Partials      396      396           

Flag	Coverage Δ
unittests	44.30% <ø> (ø)

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