fixing typo (#17)

Author: glitchassassin

exercises/05.actions/README.mdx

@@ -32,8 +32,8 @@ which gives you a pending state for while that server function runs and that
 transition is pending.
 
 To take it a step further, `useActionState` turns that server function into an
-action which resembles the way native form actions without the URL indirection.
-This approach even support progressive enhancement such that if the JavaScript
+action which resembles the way native form actions work without the URL indirection.
+This approach even supports progressive enhancement such that if the JavaScript
 has not yet been loaded, the form will act like a normal form submission.
 
 In practice, what this all means is you get to pass a server-only function to a