DOC: Add docstring

src/core/js/ext_editmode_wysiwyg_text.js

@@ -22,6 +22,20 @@
 
 /**
  * Replaces textareas in the edit mode by a wysiwyg editor
+ *
+ * @module ext_editmode_wysiwyg_text
+ * @version 0.1
+ *
+ * @param jQuery - well-known library.
+ * @param log - singleton from loglevel library or javascript console.
+ * @param {class} ClassicEditor - ClassicEditor class from ckEditor
+ * @param {module} edit_mode - caosdb's edit-mode module
+ * @param {function} getPropertyElements - caosdb's function to extract the
+ *     property HTML elements from an entity HTML element
+ * @param {function} getPropertyDatatype - caosdb's function to extract the
+ *     data type from a property HTML element
+ * @param {function} getPropertyName - caosdb's function to extract the
+ *     name from a property HTML element
  */
 var ext_editmode_wysiwyg_text = function ($, logger, ClassicEditor, edit_mode, getPropertyElements, getPropertyDatatype, getPropertyName) {