Issue #1373194 by chris.leversuch: Fixed Field Attach API topic/group page...

Issue #1373194 by chris.leversuch: Fixed Field Attach API topic/group page should link to Field Language API page.

core/modules/field/field.attach.inc

@@ -120,6 +120,9 @@ function __construct($errors) {
  * Field Storage API is essentially the "fallback mechanism" for any fields
  * that aren't being intercepted explicitly by pre-operation hooks.
  *
+ * @link field_language Field language API @endlink provides information about
+ * the structure of field objects.
+ *
  * @see field
  */