Fix grammar typo

README.md

@@ -109,7 +109,7 @@ Place `Root` once, which is what listens to every single call and renders it. An
 ```
 
 > [!IMPORTANT]
-> If more than one call is active, they will render one after another (newer below, which is one on top another if your CSS is position fixed/absolute). It works as a call stack.
+> If more than one call is active, they will render one after the other (newer below, which is one on top of the other if your CSS is position fixed/absolute). It works as a call stack.
 
 > [!WARNING]
 > Since it's the source of truth, there can only be one `Root`. Avoid placing it in multiple locations of the React Tree at the same time, an error will be thrown if so.