Merge branch 'feature/upd_cloud_doc2' into 'master'

...ocs/additional-information/concepts-of-cloud-computing.md

...te/openstack/docs/additional-information/custom-images.md

topics/compute/openstack/docs/additional-information/faq.md

...stack/docs/additional-information/ip-allocation-policy.md

...stack/docs/additional-information/ipv6-troubleshooting.md

...e/openstack/docs/additional-information/object-storage.md

...penstack/docs/additional-information/using-cloud-tools.md

...enstack/docs/additional-information/virtual-networking.md

...ack/docs/getting-started/creating-first-infrastructure.md

...ompute/openstack/docs/getting-started/creating-project.md

...mpute/openstack/docs/how-to-guides/accessing-instances.md

...mpute/openstack/docs/how-to-guides/attaching-interface.md

.../openstack/docs/how-to-guides/attaching-remote-storage.md

...ute/openstack/docs/how-to-guides/changing-vm-resources.md

...enstack/docs/how-to-guides/configuring-security-groups.md

...compute/openstack/docs/how-to-guides/create-networking.md

topics/compute/openstack/docs/how-to-guides/create-router.md

...e/openstack/docs/how-to-guides/deploying-loadbalancers.md

...nstack/docs/how-to-guides/high-availability-deployment.md

...enstack/docs/how-to-guides/maintaining-cloud-resources.md