Add mining instructions in docs
I see this question being asked multiple times every day in the chat.
@@ -121,3 +121,6 @@ troubleshooting, etc.
Please note that all mining functions for Grin have moved into a separate, standalone package called
[grin_miner](https://github.com/mimblewimble/grin-miner). Once your Grin code node is up and running,
you can start mining by building and running grin-miner against your running Grin node.
+
+For grin-miner to be able to communicate with your grin node, make sure that you have `enable_stratum_server = true`
+in your `grin-server.toml` configuration file and you have a wallet listener running (`grin wallet listen`).
