plugins: update meta data for all core plugins

So that the readme's can be published on Grafana.com

public/app/plugins/datasource/postgres/README.md

@@ -1,8 +1,9 @@
-# Grafana PostgreSQL Datasource -  Native Plugin
+# Grafana PostgreSQL Data Source -  Native Plugin
 
 Grafana ships with a built-in PostgreSQL data source plugin that allows you to query and visualize data from a PostgreSQL compatible database.
 
-##Adding the data source
+## Adding the data source
+
 1. Open the side menu by clicking the Grafana icon in the top header.
 2. In the side menu under the Dashboards link you should find a link named Data Sources.
 3. Click the + Add data source button in the top header.

public/app/plugins/datasource/postgres/plugin.json

@@ -4,6 +4,7 @@
   "id": "postgres",
 
   "info": {
+    "description": "PostgreSQL Data Source for Grafana",
     "author": {
       "name": "Grafana Project",
       "url": "https://grafana.com"
@@ -11,7 +12,8 @@
     "logos": {
       "small": "img/postgresql_logo.svg",
       "large": "img/postgresql_logo.svg"
-    }
+    },
+    "version": "5.0.0"
   },
 
   "alerting": true,