Complete documentation

[vanyarock01]

We have a README and Tarantool Cartridge in K8s guide.
But there is no complete documentation. New content cannot always be put into a guide or README.

I offer documentation with the following structure:

• Quick start (deploy operator and cartridge with helm)
• Design/Architecture (TODO)
• Tools compatibility(kubectl, minikube, kind, helm)
• Tarantool Operator
  • Install (helm)
    • CRD`s (TODO)
    • Operator application
  • Delete
  • Security (RBAC) (TODO)
  • Resources using (limits & requests) (TODO)
  • Troubleshooting (TODO)
  • Building from source (TODO)
  • Chart parameters table (example: https://github.com/helm/charts/tree/master/stable/postgresql#parameters) (TODO)
• Tarantool Cartridge in K8s
  • Creating an application
  • Install
  • Access Cluster (TODO)
  • Cluster management
    • Adding a new replica
    • Adding a shard (replicaset)
    • Updating application version
    • Update replicaset roles
    • Failover settings
    • Deleting a cluster
  • Customization
    • Sidecar containers
  • Troubleshooting
    • Insufficient CPU
    • Insufficient disk space
    • Recreating replicas (TODO)
  • Administration (TODO)
    • ???
  • Chart parameters table (example: https://github.com/helm/charts/tree/master/stable/postgresql#parameters) (TODO)
• Guides
  • Contribution Guide (TODO)
  • Installation in an internal network
    • Delivery of tools
    • Installing the Tarantool Kubernetes operator
    • Installing the Tarantool Cartridge app
  • Running multiple Tarantool Cartridge clusters in different namespaces
  • Prometheus + Grafana Monitoring (TODO)
  • Crud ready-to-use application in Kubernetes

[kluevandrew]

This issue is still actual, but we need to change content for new version