message: fix: update recommended memory for ops setup
  An issue was recently reported that showed that 4gb was not
  sufficient to run the docker setup. This commit updates the recommended
  amount of memory to 8gb.
diff: @@ -34,7 +34,7 @@ docker-compose \
  Also note that Docker Desktop only allocates 2GB of memory by default, which isn't enough to run the docker-compose services reliably.
  -To allocate more memory, go to Settings > Resources in the Docker UI and use the slider to change the value (_4GB recommended_). Make sure to click Apply & Restart for the changes to take effect.
  +To allocate more memory, go to Settings > Resources in the Docker UI and use the slider to change the value (_8GB recommended_). Make sure to click Apply & Restart for the changes to take effect.
  To start the stack with monitoring enabled, just add the metric composition file.
  ```
  @@ -46,6 +46,7 @@ docker-compose \
  ```
  Optionally, run a verifier along the rest of the stack. Run a replica with the same command by switching the service name!
  +
  ```
  docker-compose
  -f docker-compose.yml \
  @@ -55,7 +56,6 @@ docker-compose
  --build --detach
  ```
  -
  A Makefile has been provided for convience. The following targets are available.
  - make up
  - make down
  