[no ci] update readme

README.md

@@ -6,7 +6,9 @@
 )](https://github.com/purseclab/Patcherex2/actions/workflows/test.yml)
 [![License](https://img.shields.io/github/license/purseclab/patcherex2.svg)](https://github.com/purseclab/Patcherex2/blob/main/LICENSE)
 
-### ⚠️CAUTION⚠️: This project is currently in its initial development stages. Please anticipate potential breaking changes. The first stable release is targeted for early March 2024.
+> [!WARNING]
+> This project is currently in its initial development stages. Please anticipate potential breaking changes. The first stable release is targeted for early March 2024.
+
 Patcherex 2 is a rewritten adaptation of the original [Patcherex](https://github.com/angr/patcherex) project, aimed at building upon its core ideas and extending its capabilities.
 
 ## Installation