Add markdown button to CKEditor menu bars

config/sync/editor.editor.basic_html.yml

@@ -17,6 +17,7 @@ settings:
         -
           name: Formatting
           items:
+            - Markdown
             - Bold
             - Italic
         -
@@ -43,6 +44,8 @@ settings:
           items:
             - Source
   plugins:
+    language:
+      language_list: un
     stylescombo:
       styles: ''
 image_upload:
@@ -51,5 +54,5 @@ image_upload:
   directory: inline-images
   max_size: ''
   max_dimensions:
-    width: 0
-    height: 0
+    width: null
+    height: null