Add react and react-dom as peer dependencies

[brandonbloom]

Fixes errors using Yarn 2 (berry).

See ant-design/ant-design#27339 for details.

[vercel]

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[codecov]

Codecov Report

Merging #169 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #169   +/-   ##
=======================================
  Coverage   97.52%   97.52%           
=======================================
  Files           5        5           
  Lines         121      121           
  Branches       39       39           
=======================================
  Hits          118      118           
  Misses          3        3           

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