[#7767] replace "options" with "entry_options"

Author: xabbuh

reference/forms/types/collection.rst

@@ -283,8 +283,8 @@ the empty values will be kept.
     The ``delete_empty`` option only removes items when the normalized value is
     ``null``. If the nested `type`_ is a compound form type, you must either set
     the ``required`` option to ``false`` or set the ``empty_data`` option to 
-    ``null``. Both of these options can be set inside `options`_. Read about
-    the :ref:`form's empty_data option <reference-form-option-empty-data>`
+    ``null``. Both of these options can be set inside `entry_options`_. Read
+    about the :ref:`form's empty_data option <reference-form-option-empty-data>`
     to learn why this is necessary.
 
 entry_options