chore: add badges

[hunjixin]

关联的Issues (Related Issues)

close filecoin-project/venus#5216

改动 (Proposed Changes)

附注 (Additional Info)

自查清单 (Checklist)

在你认为本 PR 满足被审阅的标准之前，需要确保 / Before you mark the PR ready for review, please make sure that:

• 符合Venus项目管理规范中关于PR的相关标准 / The PR follows the PR standards set out in the Venus project management guidelines
• 具有清晰明确的commit message / All commits have a clear commit message.
• 包含相关的的测试用例或者不需要新增测试用例 / This PR has tests for new functionality or change in behaviour or not need to add new tests.
• 包含相关的的指南以及文档或者不需要新增文档 / This PR has updated usage guidelines and documentation or not need
• 通过必要的检查项 / All checks are green

[codecov-commenter]

Codecov Report

Merging #236 (d010aa2) into master (37e66bb) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #236   +/-   ##
=======================================
  Coverage   23.66%   23.66%           
=======================================
  Files         173      173           
  Lines       19560    19560           
=======================================
  Hits         4628     4628           
  Misses      14153    14153           
  Partials      779      779           

Flag	Coverage Δ
unittests	23.66% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
models/badger/storage_deal.go	69.73% <0.00%> (-0.39%)	⬇️
paychmgr/simple.go	79.49% <0.00%> (+0.22%)	⬆️

[Fatman13]

LGTM