chore: update release-notes

Author: makspll

release-notes/0.9.0.md

@@ -5,7 +5,7 @@
 ## Summary
 - The entire crate was completely re-written
 - We cut down the number of crates, moving most common functionality into the core crate and removing all the horrible macros
-- All of the systems have been made more robust and testable
+- All of the systems have been made more robust and testable (with a respectable 72% test coverage)
 - The crate is now completely panic free!
 - The script lifecycle is automatically tied to script assets, loading and unloading assets and placing `ScriptComponent`'s on entities is all you need to do to manage the complexities of creating, updating, deleting and hot-loading script state.
 - A new `ScriptValue` abstraction allows us to centrally define and register dynamic script functions which automatically register their type dependencies with the `AppTypeRegistry`