Add Prom-migrator to list of integrations (#1864)
Add Prom-migrator to list of integrations (#1864)

Prom-migrator allows users to migrate existing data between various long-term storage systems. In particular it can migrate data from any system that support remote_read to any system that supports remote_write. I think it would be useful to users and this seems like a natural place to mention this.

Signed-off-by: Matvey Arye <cc7c5be316e48d137cbb549833b85d91034d799d@timescale.com>
prometheus/docs,prometheus/docs,prometheus/docs