message: important note about token query server
diff: @@ -21,6 +21,10 @@ From the `net-emissions-token-network/interface` directory, run
  yarn install
  ```
  +## Token Query Server
  +
  +The token query server synchronizes the blockchain network with a PostgreSQL database so that the UI could search and query the tokens and create dashboards. See [token-query-server README](../token-query-server/README.md) on how to configure and start it.
  +
  ## With Hardhat Network local testnet
  To run a testnet locally via Hardhat Network:
  