* Use consistent docs/sources directory for technical documentation This is consistent with other projects like Mimir, Grafana, and Agent. Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * Update other references to docs/tempo/website directory Signed-off-by: Jack Baldry <jack.baldry@grafana.com> Signed-off-by: Jack Baldry <jack.baldry@grafana.com>