Remove restriction on using CSS from forms readme. (#1169)

Author: jenny-alexander

Form-Controls/README.md

@@ -30,8 +30,8 @@ Do not write a form action for this project.
 
 Let's write out our testable criteria. Check each one off as you complete it.
 
-- [ ] I have used HTML only.
-- [x] I have not used any CSS or JavaScript.
+- [ ] I have only used HTML and CSS.
+- [ ] I have not used any JavaScript.
 
 ### HTML