doc: update README.md styling

Author: ntamas

README.md

@@ -77,8 +77,10 @@ where `[arch]` is either `Win32` for 32-bit builds or `x64` for 64-bit builds.
 Also, when building in MSYS2, you need to set the `SETUPTOOLS_USE_DISTUTILS`
 environment variable to `stdlib`; this is because MSYS2 uses a patched version
 of `distutils` that conflicts with `setuptools >= 60.0`.
-Note: You need the following packages:
-`$MINGW_PACKAGE_PREFIX-python-pip $MINGW_PACKAGE_PREFIX-python-setuptools $MINGW_PACKAGE_PREFIX-cc $MINGW_PACKAGE_PREFIX-cmake`
+
+> [!TIP]
+> You need the following packages:
+> `$MINGW_PACKAGE_PREFIX-python-pip $MINGW_PACKAGE_PREFIX-python-setuptools $MINGW_PACKAGE_PREFIX-cc $MINGW_PACKAGE_PREFIX-cmake`
 
 ### Enabling GraphML