Remove documentation status badge from README

Removed the documentation status badge link from README.

Author: shawntz

README.md

@@ -3,7 +3,6 @@
 <p align="center">
   <a href="https://github.com/shawntz/fmri/releases"><img src="https://img.shields.io/github/v/release/shawntz/fmri?label=version" alt="Release Version"></a>
   <a href="https://github.com/shawntz/fmri/blob/main/LICENSE"><img src="https://img.shields.io/github/license/shawntz/fmri" alt="License"></a>
-  <a href="https://fmriprep-workbench.readthedocs.io/"><img src="https://readthedocs.org/projects/fmriprep-workbench/badge/?version=latest" alt="Documentation Status"></a>
   <a href="https://github.com/shawntz/fmri/blob/main/CHANGELOG.md"><img src="https://img.shields.io/badge/changelog-available-blue" alt="Changelog"></a>
 </p>