Markdown code block escapes the HTML special character wrong

The README.md(Overview) on DockerHub, markdown escapes the HTML special characters inside the code block.

Sample

`​`​​`​shellsession
$ echo 'foo' && echo 'bar' && echo '<foo><bar>'
`​`​​`​

The Markdown above becomes as below:

Sample

$ echo 'foo' &amp;&amp; echo 'bar' &amp;&amp; echo ''