Fix docs formatting

RE #62

jenkins-node/mantid-builder-macos/README.md

@@ -49,9 +49,11 @@ The ansible scripts will set up the machine and connect it to the Jenkins contro
 1. If you already have the `ansible-linode` repo and associated conda environment, activate it and skip to step 4.
 2. Clone the [`mantidproject/ansible-linode`](https://github.com/mantidproject/ansible-linode) repo.
 3. Navigate to the base of the cloned repo and run:
+
   - `mamba create --prefix ./condaenv ansible`
   - `mamba activate ./condaenv`
   - Note: You can activate the environment from anywhere by providing the full path to the `condaenv` directory.
+
 4. Clone the [`dockerfiles`](https://github.com/mantidproject/dockerfiles) repo and navigate to `jenkins-node/mantid-builder-macos/ansible`.
 5. Install the required collections from Ansible Galaxy by running:
   - `ansible-galaxy install -r requirements.yml`