* Prometheus: Add documentation for ad-hoc filters * Update docs/sources/datasources/prometheus.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Update docs/sources/datasources/prometheus.md Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com> * Add link to ad hoc filters doumentation * Change direct url for relative Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
