Update rendertemplates documentation (#4341)
Update rendertemplates documentation (#4341)

* Update rendertemplates documentation

* Update development/tools/cmd/rendertemplates/README.md

Co-authored-by: Małgorzata Świeca <c3870c20c778938ffa212a212d1950fcdb68c300@gmail.com>

Co-authored-by: Małgorzata Świeca <c3870c20c778938ffa212a212d1950fcdb68c300@gmail.com>
kyma-project/test-infra,kyma-project/test-infra,kyma-project/test-infra