docs: move usage notes for ngswitch

Author: jbogarthyde

packages/common/src/directives/ng_switch.ts

@@ -49,9 +49,6 @@ export class SwitchView {
  * - Elements within the `[NgSwitch]` statement but outside of any `[NgSwitchCase]`
  * or `[ngSwitchDefault]` directive are preserved at the location in the DOM.
  *
- * @see `NgSwitchCase`
- * @see `NgSwitchDefault`
- *
  * @UsageNotes
  * Define a container element for the directive, and specify the switch expression
  * to match against as an attribute:
@@ -101,6 +98,9 @@ export class SwitchView {
  *     </container-element>
  * ```
  *
+ * @see `NgSwitchCase`
+ * @see `NgSwitchDefault`
+ *
  */
 @Directive({selector: '[ngSwitch]'})
 export class NgSwitch {