Adapt docs on additional rules and dashboards

build.sh

@@ -5,5 +5,5 @@ set -x
 set -o pipefail
 
                                                # optional, but we would like to generate yaml, not json
-jsonnet -J vendor -m manifests example.jsonnet | xargs -I{} sh -c 'cat $1 | gojsontoyaml > $1.yaml; rm -f $1' -- {}
+jsonnet -J vendor -m manifests ${1-example.jsonnet} | xargs -I{} sh -c 'cat $1 | gojsontoyaml > $1.yaml; rm -f $1' -- {}