Update .once modifier documentation

Author: davidparys

docs/content/2.usage/3.modifiers.md

@@ -36,7 +36,7 @@ Makes the animation play only once when scrolling down, and stay in its final st
 Similar to `.once` but will reverse the animation when scrolling back up, allowing it to play again when scrolling down.
 
 ::alert{type="info"}
-Using `.once.reversible` gives you the previous behavior of `.once` from v1.1.8 and earlier.
+This is the default previous behavior of `.once`.
 ::