docs(*): more cheatsheet docs

modules/angular2/docs/cheatsheet/forms.md

@@ -1,8 +1,9 @@
 @cheatsheetSection
-@name Forms
+Forms
+@cheatsheetIndex 2
 @description
 `import {FORM_DIRECTIVES} from 'angular2/angular2';`
 
 @cheatsheetItem
-`<input [(ng-model)]=\"userName\">`|`[(ng-model)]`
+`<input [(ng-model)]="userName">`|`[(ng-model)]`
 Provides two-way data-binding, parsing and validation for form controls.