Add a note about supported text ckeditor

docs/reference/plugins.rst

@@ -292,10 +292,13 @@ fallback icon.
 * ``icon_context``: A dictionary containing information about the needed icon
   like `width`, `height`, `theme`, etc
 
-Usualy this method should return the icon url. But, it may depends on the text
+Usually this method should return the icon url. But, it may depends on the text
 editor because what is needed may differ. Please consult the documentation of
 your text editor plugin.
 
+This requires support from the text plugin; support for this is currently planned
+for `djangocms-text-ckeditor <https://github.com/divio/djangocms-text-ckeditor/>`_ 2.5.0.
+
 See also: `text_enabled`_
 
 .. _get_extra_placeholder_menu_items:
@@ -466,4 +469,6 @@ copy_url
 Returns the url to call to copy a plugin instance; useful to implement plugin-specific
 logic in a custom view
 
-Default: None (``cms_page_copy_plugins`` view is used)
+Default: None (``cms_page_copy_plugins`` view is used)
+
+: _`