Add converted into rst fromat the following articles:
* Windows image builder
* Linux image builder
* Uploading image to Glance
* Lab preparation and system requiremnts added in installation section
* SSL configuration
Change-Id: I6b4c7e7e6670690e5722ea906e6464faff2a369b
Signed-off-by: Ekaterina Fedorova <efedorova@mirantis.com>
e2e00a2382