Add Readme - powered by wechaty example

[shawnmuggle]

I'm submitting a...

[ ] Bug Fix
[ ] Feature
[x] Other (Refactoring, Added tests, Documentation, ...)

Checklist

• Commit Messages follow the Conventional Commits pattern
  • A feature commit message is prefixed "feat:"
  • A bugfix commit message is prefixed "fix:"
• Tests for the changes have been added

Description

please describe the changes that you are making
Add Readme - powered by wechaty example

for features, please describe how to use the new feature

please include a reference to an existing issue, if applicable

Does this PR introduce a breaking change?

[ ] Yes
[x] No

[shawnmuggle]

跟 #1818 有冲突。 merge时可能需改下序号

[huan]

Thanks for sharing your great open source project!

[lijiarui]

LGTM！