Add instructions to run redis

Author: nicolelim02

backend/user-service/.env.sample

@@ -29,7 +29,8 @@ USER=EMAIL_ADDRESS
 PASS=PASSWORD
 
 # Redis configuration
-REDIS_URI=REDIS_URI
+REDIS_URI=redis://redis:6379 # Uncomment if you're running the user service with docker
+# REDIS_URI=redis://localhost:6379 # Uncomment if you're running the user service individually without docker
 
 # Test
 MONGO_URI_TEST=mongodb://mongo:mongo@test-mongo:27017/

backend/user-service/README.md

@@ -44,11 +44,19 @@
 
 ## Running User Service without Docker
 
-1. Open Command Line/Terminal and navigate into the `user-service` directory.
+1. Set up and run Redis using `docker compose run --rm --name redis -p 6379:6379 redis`.
 
-2. Run the command: `npm install`. This will install all the necessary dependencies.
+2. Open Command Line/Terminal and navigate into the `user-service` directory.
 
-3. Run the command `npm start` to start the User Service in production mode, or use `npm run dev` for development mode, which includes features like automatic server restart when you make code changes.
+3. Run the command: `npm install`. This will install all the necessary dependencies.
+
+4. Run the command `npm start` to start the User Service in production mode, or use `npm run dev` for development mode, which includes features like automatic server restart when you make code changes.
+
+## Running User Service Individually with Docker
+
+1. Open the command line/terminal.
+
+2. Run the command `docker compose run user-service` to start up the user service and its dependencies.
 
 ## After running