docs: Add Azure installation instructions

Adding instructions that refers to the Microsoft Azure
documentation on creating Docker-ready Linux VMs on Azure
platform.

Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>

docs/mkdocs.yml

@@ -45,6 +45,7 @@ pages:
 - ['installation/google.md', 'Installation', 'Google Cloud Platform']
 - ['installation/gentoolinux.md', 'Installation', 'Gentoo']
 - ['installation/softlayer.md', 'Installation', 'IBM Softlayer']
+- ['installation/azure.md', 'Installation', 'Microsoft Azure']
 - ['installation/rackspace.md', 'Installation', 'Rackspace Cloud']
 - ['installation/rhel.md', 'Installation', 'Red Hat Enterprise Linux']
 - ['installation/oracle.md', 'Installation', 'Oracle Linux']

docs/sources/installation/azure.md

@@ -0,0 +1,27 @@
+page_title: Installation on Microsoft Azure Platform
+page_description: Instructions for creating a Docker-ready virtual machine on Microsoft Azure cloud platform.
+page_keywords: Docker, Docker documentation, installation, azure, microsoft
+
+# Microsoft Azure
+
+
+## Creating a Docker host machine on Azure
+
+Please check out to the following detailed tutorials on [Microsoft Azure][0]
+website to find out different ways to create a Docker-ready Linux virtual
+machines on Azure:
+
+* [Docker Virtual Machine Extensions on Azure][1]
+    * [How to use the Docker VM Extension from Azure Cross-Platform Interface][2]
+    * [How to use the Docker VM Extension with the Azure Portal][3] 
+* [Using Docker Machine with Azure][4]
+
+## What next?
+
+Continue with the [User Guide](/userguide/).
+
+[0]: http://azure.microsoft.com/
+[1]: http://azure.microsoft.com/en-us/documentation/articles/virtual-machines-docker-vm-extension/
+[2]: http://azure.microsoft.com/documentation/articles/virtual-machines-docker-with-xplat-cli/
+[3]: http://azure.microsoft.com/documentation/articles/virtual-machines-docker-with-portal/
+[4]: http://azure.microsoft.com/en-us/documentation/articles/virtual-machines-docker-machine/