Update README.md

Author: mnot

docker/README.md

@@ -5,10 +5,10 @@ This Docker image runs reverse proxy caches for testing.
 To add a new reverse proxy:
 
 1. In `Dockerfile`:
-  1. add its ubuntu package to the `apt-get` line
-  2. make any configuration adjustments with `COPY` and/or `RUN` in a new section. In particular:
-     a. The proxy should listen on a dedicated port (the next in the 8000 series that's available)
-     b. It should use localhost:8000 for the origin server
+   1. add its ubuntu package to the `apt-get` line
+   2. make any configuration adjustments with `COPY` and/or `RUN` in a new section. In particular:
+      1. The proxy should listen on a dedicated port (the next in the 8000 series that's available)
+      2. It should use localhost:8000 for the origin server
 2. In `setup.sh`, run any additional configuration steps that are necessary
 3. In `entrypoint.sh`, add the needed commands (usually `sed`) to change the origin server hostname (for when the docker runs on desktop)
 4. In `serve.sh`, start the server in the background