Fix duplication in development docker-compose file.

HACKING.md

@@ -45,6 +45,13 @@ Edit the `./environments/development.env` file and adjust the configurations var
 
 Make sure that the `./environments/development.env` exists and has the correct configuration.
 
+Before you start your docker containers for the first time, you'll
+need to create an external docker volume, like this:
+
+```
+docker volume create --name=current-bench-data
+```
+
 Start the docker-compose environment:
 
 ```

environments/development.docker-compose.yaml

@@ -51,18 +51,10 @@ services:
       args:
         TARGET_ARCH: ${OCAML_BENCH_TARGET_ARCH?required}
     volumes:
-      - current-bench-data:/app/current-bench-data
       # Mount the source code of the test project to allow local testing.
+      - current-bench-data:/app/current-bench-data
       - ../local-test-repo:/app/local-test-repo
       - /var/run/docker.sock:/var/run/docker.sock
-    ports:
-      [
-        "${OCAML_BENCH_PIPELINE_PORT?required}:${OCAML_BENCH_PIPELINE_PORT?required}",
-      ]
-    # Mount the source code of the test project to allow local testing.
-    - current-bench-data:/app/current-bench-data:ro
-    - ../local-test-repo:/app/local-test-repo
-    - /var/run/docker.sock:/var/run/docker.sock
     ports: ["${OCAML_BENCH_PIPELINE_PORT?required}:${OCAML_BENCH_PIPELINE_PORT?required}"]
     command:
       - "current-bench-pipeline"