readme: add jenkins build status badge

[hey-hoho]

What problem does this PR solve?

Problem Summary: add jenkins build status badge in Readme.md

What is changed and how it works?

What's Changed: add jenkins build status badge in Readme.md

How it Works: page show

Related changes

• Need to cherry-pick to the release branch

• Unit test

• Integration test

• Manual test (add detailed scripts or steps below)

• No code