Setup basic repository information

[vidriduch]

We have found missing basic repository settings/information. Please, consider changing following:

• Default template references inside README.md file

If you want to add label to almost all resources which has a deployment like `nest-prisma-template`, you can use this
 Usually secret has a name `nest-prisma-template-database-secret`, but you have to specify it without app name.
 bratiska-cli build_kustomize --deployment nest-prisma-template
 bratiska-cli build_kustomize --host nest-prisma-template.example.com
 bratiska-cli build_kustomize --image harbor.example.com/standalone/nest-prisma-template/master-4a18e16-richi
 bratiska-cli deploy --deployment=nest-prisma-template-super-duper
 bratiska-cli deploy --dry_run --image harbor.bratislava.sk/standalone/nest-prisma-template:bratiska-cli-3f3ce4fd14c76138a081596b2987a81f18a3c747-master-untracked --kustomize ./kubernetes/base
 bratiska-cli deploy --image harbor.bratislava.sk/standalone/nest-prisma-template:bratiska-cli-3f3ce4fd14c76138a081596b2987a81f18a3c747-master-untracked
 if you want to just use whatever image, then after `--image` flag type app package name, like `nest-prisma-template`
 

Remove any references on default template file, or if never changed from default README.md, please write one specific to the project.

• Found different or non-existent licence. Please, consider adding EUPL-1.2 LICENCE