Update screenshot and update docs with example plugins

Signed-off-by: Axel Boberg <[email protected]>

README.md

@@ -9,7 +9,7 @@ An extendable graphics playout client that's both a desktop app and a cloud serv
 
 **This project is still in very early development**
 
-![UI](/media/ui.png)
+![Screenshot](/media/screenshot.png)
 
 ## Goals
 

docs/plugins/README.md

@@ -2,6 +2,7 @@
 Plugins allows Bridge to be extended with functionality, both through the backend main process or by creating UI widgets.
 
 ## Table of contents
+- [Examples](#examples)
 - [Getting started](#getting-started)
   - [Structure](#structure)
   - [Plugin manifest](#plugin-manifest)
@@ -12,6 +13,9 @@ Plugins allows Bridge to be extended with functionality, both through the backen
     - [contributes](#contributes)
 - [API reference](/docs/api/README.md)
 
+## Examples
+Example plugins can be found in the [examples directory](../../examples)
+
 ## Getting started
 Plugins are Javascript packages located in Bridge's plugin directory.