Update README.md

Author: YannCebron

README.md

@@ -4,6 +4,9 @@
 [![Downloads](https://img.shields.io/jetbrains/plugin/d/17712.svg)](https://plugins.jetbrains.com/plugin/17712)
 
 ## Motorola 68000 Series Assembly Language Support for IntelliJ based IDEs
+
+> [!IMPORTANT]
+> As of November 2024, this plugin is no longer under active development.
                                             
 Adds support for [Motorola 68000 series](https://en.wikipedia.org/wiki/Motorola_68000_series) assembly language
 in [IntelliJ](https://plugins.jetbrains.com/docs/intellij/intellij-platform.html#ides-based-on-the-intellij-platform) based IDEs.
@@ -44,4 +47,4 @@ Licensed under the Apache License, Version 2.0 (the "License"), see [LICENCE](LI
 
 This software includes [commonmark-java](https://github.com/atlassian/commonmark-java) library, Copyright (c) 2015-2016, Atlassian Pty Ltd
 
-*All product names, trademarks, and registered trademarks are property of their respective owners.*
+*All product names, trademarks, and registered trademarks are property of their respective owners.*