Clarify seeding steps in the readme

Author: lindenmckenzie

v2/stacks/migration/Makefile

@@ -10,26 +10,26 @@ init: base-init
 # Add any stack specific helper targets here
 
 .PHONY: seed-topic-api
-seed-topic-api:
+seed-topic-api: # Seed the topic API with the required topics for the migration job
 	../../scripts/seed-topic-api.sh
 
 .PHONY: seed-permissions-api
-seed-permissions-api:
+seed-permissions-api: # Seed the permissions API with the required permissions for the migration job
 	../../scripts/seed-permissions-api.sh
 
 .PHONY: up-with-seed
-up-with-seed:
+up-with-seed: ## Start the stack and seed the topic and permissions APIs
 	$(MAKE) up
 	$(MAKE) seed-topic-api
 	$(MAKE) seed-permissions-api
 
 .PHONY: remove-migration-collection
-remove-migration-collection:
+remove-migration-collection: # Remove the test migration collection from zebedee content store.
 	rm $(zebedee_root)/zebedee/collections/$(MIGRATION_COLLECTION_NAME).json
 	rm -r $(zebedee_root)/zebedee/collections/$(MIGRATION_COLLECTION_NAME)
 
 .PHONY: reset
-reset:
+reset: # Reset the MongoDB databases and remove the test migration collection
 	mongosh localhost:27017/migrations --file ../../provisioning/mongo/reset.js
 	mongosh localhost:27017/datasets --file ../../provisioning/mongo/reset.js
 	$(MAKE) remove-migration-collection

v2/stacks/migration/README.md

@@ -23,27 +23,27 @@ To run the stack:
 
    This is required for the local docker build to work around a current issue with the volume paths not existing pre-build. Once this issue has been resolved, this step will no longer be necessary.
 
-3. Build and start the stack:
+3. For most use cases, you will want to run the stack with dp-topic-api and dp-permissions-api database seeded.
 
-   ```shell
-   make up
-   ```
-
-To run the stack with dp-topic-api and dp-permissions-api database seeded:
+To run the seeding you will need mongosh installed:
 
-Follow the prerequsites for installing `mongosh` here - `https://github.com/ONSdigital/dp-topic-api/tree/develop/scripts`
+```sh
+   brew install mongosh
+```
 
-Run:
+To run the services with seeding, run:
 
 ```shell
    make up-with-seed
 ```
 
-This assumes that the locations of repositories on your system is in the same root as `dp-compose` or that you have an environment variable set for `$DP_REPO_DIR`
+This will start all the containers (including mongodb) and then run the seeding scripts.
+
+The seeding scripts assume that the locations of repositories on your system is in the same root as `dp-compose` or that you have an environment variable set for `$DP_REPO_DIR`.
 
 If that is not the correct location, you will be prompted to input a custom location for dp-topic-api or dp-permissions-api on your system.
 
-Once the correct location is found, you should see something like:
+When the scripts run, you should see something like the below in your terminal:
 
 ```shell
 Found dp-topic-api at {some-path}/dp-topic-api
@@ -54,6 +54,14 @@ Seeding permissions API database...
 Found dp-permissions-api at {some-path}/dp-permissions-api
 ```
 
+If any service hasn't picked up it's topic or permissions cache, you can force a refresh via `SERVICE={serviceName} make restart`.
+
+3a. If you don't want to run the stack with the databases seeded, you can use:
+
+```sh
+   make up
+```
+
 ## How to test it's all working together
 
 1. Access the authentication stub login page <http://localhost:29500/florence/login>