How to add hyperlink in jupyter lab home page

How we can create a hyperlink in jupyterlab home page (Header)

I don’t want to create in markdown because i need hyperlink in header.

I have running instance of jupyterlab so don’t want to modified existing files.

If we can add files something like can create extension and include it will be good.

Some reference i hv seen asking for to fetch code from git and create extensions with new files.
I can not use public repo.