feat(doc): Add a section about plugin documentation

Document properly server local

Update 2022-06-28-tips-kafka-streams-distributed.md

doc: improve the overview and getting started pages

fix(docs): typos and improvements

Sync listed namespaces

Add Restack as a way to deploy Kestra on AWS on Kubernetes

Update type minio and section name instead of azure

Describe Flowable & Parent on a specifique page

Make localhost links active