test banner tag in readme

README.md

@@ -10,10 +10,9 @@ This repository provides a pipeline for the following.
 - Image representation learning
   - Self-supervised learning of the cell state and organelle phenotypes
 
-> **Note:**  
+> [!NOTE]
 > VisCy has been extensively tested for the image translation task. The code for other tasks is under active development. Frequent breaking changes are expected in the main branch as we unify the codebase for above tasks. If you are looking for a well-tested version for virtual staining, please use release `0.2.1` from PyPI.
 
-
 ## Virtual staining
 
 ### Demos