Add optional header to markdown editor

editor/js/ui/editor.js

@@ -2260,6 +2260,10 @@ RED.editor = (function() {
                     value: value,
                     mode:"ace/mode/markdown"
                 });
+                if (options.header) {
+                    options.header.appendTo(tray.find('#node-input-markdown-title'));
+                }
+
                 dialogForm.i18n();
             },
             close: function() {

editor/js/ui/projects/projectSettings.js

@@ -119,6 +119,7 @@ RED.projects.settings = (function() {
     function editDescription(activeProject, container) {
         RED.editor.editMarkdown({
             title: RED._('sidebar.project.editDescription'),
+            header: $('<span><i class="fa fa-book"></i> README.md</span>'),
             value: activeProject.description,
             complete: function(v) {
                 container.empty();