Remove development note in README.md

[skip ci]

Signed-off-by: Ash <73482956+ascopes@users.noreply.github.com>

Author: ascopes

README.md

@@ -33,9 +33,6 @@ these assertions comes with specially-developed human-readable error messages an
 
 Full JUnit5 integration is provided to help streamline the development process.
 
-**This module is still under development.** Any contributions or feedback
-are always welcome!
-
 ## Features
 
 - Implements in-memory file management compatible with the NIO Path and