Added Doc for Postgresql database with Jruby Platform. #jruby

railties/guides/source/getting_started.textile

@@ -280,6 +280,19 @@ development:
   password:
 </yaml>
 
+h5. Configuring an PostgreSQL Database for Jruby Platform
+
+If you choose to use PostgreSQL and using Jruby, your +config/database.yml+ will look a little different. Here's the development section:
+
+<yaml>
+development:
+  adapter: jdbcpostgresql
+  encoding: unicode
+  database: blog_development
+  username: blog
+  password:
+<yaml>
+
 TIP: You don't have to update the database configurations manually. If you had a look at the options of application generator, you have seen that one of them is named <tt>--database</tt>. It lets you choose an adapter for couple of most used relational databases. You can even run the generator repeatedly: <tt>cd .. && rails new blog --database=mysql</tt>. When you confirm the overwriting of the +config/database.yml+ file, your application will be configured for MySQL instead of SQLite.
 
 h4. Creating the Database