meta-operator: Update README

meta-operator/README.md

@@ -1,2 +1,11 @@
+# meta-operator
+
+Meta operator enables creating operators without building any binaries or
+Docker images.
+
+For example operator declaration see `keydb.yml`
+
+```
 kubectl create namespace meta-operator
 kubectl apply -f application.yml -f keydb.yml
+```