docs(ngInit): relaxed the warning notice

src/ng/directive/ngInit.js

@@ -10,16 +10,18 @@
  * current scope.
  *
  * <div class="alert alert-danger">
- * The only appropriate use of `ngInit` is for aliasing special properties of
- * {@link ng.directive:ngRepeat `ngRepeat`}, as seen in the demo below. Besides this case, you
- * should use {@link guide/controller controllers} rather than `ngInit`
- * to initialize values on a scope.
+ * This directive can be abused to add unnecesary amounts of logic into your templates.
+ * There are only a few appropriate uses of `ngInit`, such as for aliasing special properties of
+ * {@link ng.directive:ngRepeat `ngRepeat`}, as seen in the demo below; and for injecting data via
+ * server side scripting. Besides these few cases, you should use {@link guide/controller controllers}
+ * rather than `ngInit` to initialize values on a scope.
  * </div>
+ *
  * <div class="alert alert-warning">
- * **Note**: If you have assignment in `ngInit` along with {@link ng.$filter `$filter`}, make
- * sure you have parenthesis for correct precedence:
+ * **Note**: If you have assignment in `ngInit` along with a {@link ng.$filter `filter`}, make
+ * sure you have parentheses to ensure correct operator precedence:
  * <pre class="prettyprint">
- * `<div ng-init="test1 = (data | orderBy:'name')"></div>`
+ * `<div ng-init="test1 = ($index | toString)"></div>`
  * </pre>
  * </div>
  *