Merge pull request #213 from control-toolbox/update-readme-2025-10-06

Update README (2025-10-06) with latest ABOUT.md, INSTALL.md, CONTRIBUTING.md and badges

Author: ocots

README.md

@@ -54,6 +54,9 @@ pkg> add CTModels
 > [!TIP]
 > If you are new to Julia, please follow this [guidelines](https://github.com/orgs/control-toolbox/discussions/64).
 
+>[!NOTE]
+>The package requires Julia version 1.10 or later.
+
 ## Contributing
 
 [issue-url]: https://github.com/control-toolbox/CTModels.jl/issues