Update src/TwigComponent/README.md

Co-authored-by: Ryan Weaver <[email protected]>

Author: kbond

src/TwigComponent/README.md

@@ -154,7 +154,7 @@ be called instead of setting the property directly.
 ### Customize the Twig Template
 
 You can customize the template used to render the template by
-passing it as the second argument to the `TwigComponent` attribute:
+passing it as the second argument to the `AsTwigComponent` attribute:
 
 ```diff
 // src/Components/AlertComponent.php