website: Implement basic validation for plugin docs config
website: Implement basic validation for plugin docs config

pecigonzalo/packer,hashicorp/packer,hashicorp/packer,rnaveiras/packer,mitchellh/packer,mitchellh/packer,mitchellh/packer,rnaveiras/packer,rnaveiras/packer,pecigonzalo/packer,rnaveiras/packer,rnaveiras/packer,mitchellh/packer,rnaveiras/packer,pecigonzalo/packer,hashicorp/packer,mitchellh/packer,hashicorp/packer,pecigonzalo/packer