Added Readme for plugin repo.

Gruntfile.js

@@ -25,7 +25,7 @@ module.exports = function(grunt) {
       },
       pluginDef: {
         expand: true,
-        src: ['plugin.json', 'README.md'],
+        src: ['plugin.json'],
         dest: 'dist/',
       }
     },

src/README.md

@@ -0,0 +1,26 @@
+## Zabbix plugin for Grafana
+Zabbix plugin allows to show different type of data from [Zabbix](http://www.zabbix.com/) 
+monitoring system.
+
+![Dashboard](https://cloud.githubusercontent.com/assets/4932851/8269101/9e6ee67e-17a3-11e5-85de-fe9dcc2dd375.png)
+
+### Live Demo
+
+Check out the [live demo](http://play.grafana-zabbix.org/)
+
+### Features
+
+#### Flexible metric editor
+ * Regex-based metric filtering
+ * Client-side data processing functions
+ * Template variables support
+
+#### Templated dashboards support
+Group, host, application or item names can be replaced with a template variable. This allows you to create generic dashboards that can quickly be changed to show stats for a specific cluster, server or application.
+
+#### Annotations support
+ * Display zabbix events on graphs
+ * Show acknowledges for problems
+
+#### Triggers panel
+Panel for showing Zabbix triggers (like Last 20 issues) with some customizable features.