Minor fix in release process

docs/release-process.md

@@ -16,7 +16,7 @@ again be merged into master.
 
 2. Checkout the `v0.3` branch.
 
-3. Update all references to Theodolite Docker images to tag `v0.1.1`. These are the Kubernetes resource definitions in
+3. Update all references to Theodolite Docker images to tag `v0.3.1`. These are the Kubernetes resource definitions in
 `execution`, the Docker Compose files in `docker-test` and the example `theodolite.yaml` job.
 
 4. Commit these changes.