* Allow expanding metrics names in variable queries * Simplify docs * Update docs/sources/datasources/graphite.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Update docs/sources/datasources/graphite.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Update docs/sources/datasources/graphite.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Update docs/sources/datasources/graphite.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Update docs/sources/datasources/graphite.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Update docs/sources/datasources/graphite.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Update docs/sources/datasources/graphite.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Clean up docs Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>