docs: readme

README.md

@@ -1,17 +1,24 @@
 # ECFMP Discord
 
-ECFMP Discord Service
+ECFMP Discord Service. This service is responsible for interacting with ECFMP's Discord server in order to be notify flow managers of flow measure updates.
 
-# Developing Locally
+# Local Development
 
 A docker-compose file is provided for development convenience.
 
 ## Before You Start
 
 Before you start the containers, make sure you run `make protobuf`. This will generate the protobuf files that this
-service requires.
+service requires for other services to communicate with this.
+
+Copy the `.env.dev.example` file to `.env` and set the bot token. This bot should be allowed to access the channel that you intend to publish
+messages onto.
+
+## Devcontainer
+
+A devcontainer setup is provided for development.
 
 ## Running Tests
 
-Tests can be run using `make test`, which will run the tests in the `go_testing` container, allowing it to access
-MongoDB.
+Tests can be run using `make test`, which will run the tests in the main container. If you're in the dev container, you can run the tests
+by running `go test -v ./...`.