Update README.md

README.md

@@ -1,5 +1,13 @@
-# mjml-preview package
+# MJML Preview Package
 
-A short description of your package.
+Show the rendered HTML from MJML on the right pane of the editor. It is enabled for `.mjml` files.
 
-![A screenshot of your package](https://f.cloud.github.com/assets/69169/2290250/c35d867a-a017-11e3-86be-cd7c5bf3ff9b.gif)
+![mjml-preview](http://i.imgur.com/o6Y3q6f.png)
+
+To toggle the preview, go to "Packages" > "mjml-preview" > "Preview MJML".
+
+## Trigger on Save
+
+To refresh the preview pane on each save, tick the box "Trigger on Save" in the settings of the package: <kbd>⌘+,</kbd> or <kbd>ctrl+,</kbd> to open package settings > look for "mjml-preview" in "installed packages" > "Settings" > "Trigger on Save".
+
+![settings](http://i.imgur.com/R17UQmQ.png)