add suggested !important markdown to readme

Author: megahirt

README.md

@@ -1,6 +1,7 @@
 # Language Forge
 
-[Language Forge is no longer developed and is in maintenance mode](https://community.software.sil.org/t/language-forge-in-maintenance-mode/10514). We will continue to support existing Language Forge projects and we encourage all users to try [FieldWorks Lite](https://lexbox.org/fw-lite).
+> [!IMPORTANT]  
+> [Language Forge is no longer developed and is in maintenance mode](https://community.software.sil.org/t/language-forge-in-maintenance-mode/10514). We will continue to support existing Language Forge projects and we encourage all users to try [FieldWorks Lite](https://lexbox.org/fw-lite).
 
 [Language Forge](https://languageforge.org) is an online service to collaborate on building a dictionary. Users should head on over to [languageforge.org](https://languageforge.org)