update docs badge

Signed-off-by: Karl W. Schulz <karl.schulz@amd.com>

README.md

@@ -1,4 +1,4 @@
-[![Docs](https://github.com/AMDResearch/omniperf/actions/workflows/pages/pages-build-deployment/badge.svg?branch=gh-pages)](https://amdresearch.github.io/omniperf/)
+[![Docs](https://github.com/AMDResearch/omniperf/actions/workflows/docs.yml/badge.svg)](https://amdresearch.github.io/omniperf/)
 [![DOI](https://zenodo.org/badge/561919887.svg)](https://zenodo.org/badge/latestdoi/561919887)
 [![GitHub commits since last release](https://img.shields.io/github/commits-since/AMDResearch/omniperf/latest/dev.svg)](https://github.com/AMDResearch/omniperf/compare/main...dev)