docs release v1.11.0

• Add docs for kubectl gs (https://github.com/giantswarm/docs/pull/590)
• Azure v5: change example node pool VM Size to ‘Standard_D4s_v3’ (#591)
• Azure v5: change first node pools version to 13.0.0 (#586)
• Add docs about Accelerated Networking on Azure (#589)
• Fixed a link to an Azure policy (https://github.com/giantswarm/docs/pull/588)
• Complete review of the “The Giant Swarm Azure Architecture” article (https://github.com/giantswarm/docs/pull/524)