More keyboard shortcuts

src/components/Layout/Layout.js

@@ -64,7 +64,11 @@ class Layout extends React.Component {
             </Flex>
             { this.props.search && (
               <Flex>
-                <div className={ styles.search } onClick={ this.search }>
+                <div
+                  onClick={ this.search }
+                  className={ styles.search }
+                  title="Search (/)"
+                >
                   <img src={ require('assets/icons/search.svg') } />
                 </div>
               </Flex>

src/components/MarkdownEditor/MarkdownEditor.js

@@ -20,6 +20,7 @@ class MarkdownEditor extends React.Component {
     text: React.PropTypes.string,
     onChange: React.PropTypes.func.isRequired,
     replaceText: React.PropTypes.func.isRequired,
+    onSave: React.PropTypes.func.isRequired,
 
     // This is actually not used but it triggers
     // re-render to help with CodeMirror focus issues
@@ -120,6 +121,8 @@ class MarkdownEditor extends React.Component {
       theme: 'atlas',
       extraKeys: {
         Enter: 'newlineAndIndentContinueMarkdownList',
+        "Ctrl-Enter": this.props.onSave,
+        "Cmd-Enter": this.props.onSave,
       },
       placeholder: "# Start with a title...",
     };