docs(template-syntax): correct hyperlink path to API documentation

Author: rickbeerendonk

public/docs/ts/latest/guide/template-syntax.jade

@@ -881,7 +881,7 @@ block style-property-name-dart-diff
     The `ngModel` input property sets the element's value property and the `ngModelChange` output property
     listens for changes to the element's value.
     The details are specific to each kind of element and therefore the `NgModel` directive only works for elements,
-    such as the input text box, that are supported by a [ControlValueAccessor](../api/common/ControlValueAccessor-interface.html).
+    such as the input text box, that are supported by a [ControlValueAccessor](../api/common/index/ControlValueAccessor-interface.html).
     We can't apply `[(ngModel)]` to our custom components until we write a suitable *value accessor*,
     a technique that is beyond the scope of this chapter.
 
@@ -1120,7 +1120,7 @@ block dart-no-truthy-falsey
 +makeExample('template-syntax/ts/app/app.component.html', 'NgFor-3')(format=".")
 .l-sub-section
   :marked
-    Learn about other special *index-like* values such as `last`, `even`, and `odd` in the [NgFor API reference](../api/common/NgFor-directive.html).
+    Learn about other special *index-like* values such as `last`, `even`, and `odd` in the [NgFor API reference](../api/common/index/NgFor-directive.html).
 
 :marked
   #### NgForTrackBy