docs: update Why use ant design web3, add Bitcoin

[yutingzhao1991]

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Add bitcoin to Why use us.

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Name	Status	Preview	Comments	Updated (UTC)
ant-design-web3	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 13, 2024 10:05am

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Latest commit: 4a114c3

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (32e2a89) to head (4a114c3).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #872   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          707       707           
  Lines        21365     21365           
  Branches      1198      1198           
=========================================
  Hits         21365     21365           

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