fix: use correct warning alert syntax

CONTRIBUTING.md

@@ -35,7 +35,8 @@ If you use other python versions you might have or need a python version manager
 
 - [asdf](https://asdf-vm.com/) - you can run `asdf install` in the project directory and it will use the python version specified in `.tool-versions`.
 
--> ⚠️ **Warning:** [setuptools](https://pypi.org/project/setuptools/) was removed in Python 3.12, so you'll need to install it manually.
+> [!WARNING]
+> The package [setuptools](https://pypi.org/project/setuptools/) was removed in Python 3.12, so you'll need to install it manually.
 
 ```shell
 pip install setuptools

tools/README.md

@@ -45,9 +45,8 @@ The script can automatically open the files in VSCode by passing the `--open` fl
 python3 ./tools/findString.py <token> --open
 ```
 
-**Warning:** The --open flag will open only the first result for the token in VSCode. If you wish to open more files,
-you can pass the `--limit` flag with the maximum number of files you wish to open. You can also pass the `--limit 0`
-flag to open all files containing the token.
+> [!WARNING]
+> The --open flag will open only the first result for the token in VSCode. If you wish to open more files, you can pass the `--limit` flag with the maximum number of files you wish to open. You can also pass the `--limit 0` flag to open all files containing the token.
 
 ```bash
 python3 ./tools/findString.py <token> --open --limit 5