Fix some formatting.

neo4j/content.md

@@ -128,11 +128,15 @@ FROM neo4j
 
 If you need to make your own configuration changes, we provide a hook so you can do that in a script:
 
+```dockerfile
 COPY extra_conf.sh /extra_conf.sh
+```
 
 Then you can pass in the `EXTENSION_SCRIPT` environment variable at runtime to source the script:
 
-	docker run -e "EXTENSION_SCRIPT=/extra_conf.sh" cafe12345678
+```console
+$ docker run -e "EXTENSION_SCRIPT=/extra_conf.sh" cafe12345678
+```
 
 When the extension script is sourced, the current working directory will be the root of the Neo4j installation.
 
@@ -145,22 +149,30 @@ In order to run Neo4j in HA mode under Docker you need to wire up the containers
 
 Within a single Docker host, this can be achieved as follows.
 
-	docker network create --driver=bridge cluster
+```console
+$ docker network create --driver=bridge cluster
+```
 
-	docker run --name=instance1 --detach --publish=7474:7474 --net=cluster --hostname=instance1 \
+```console
+$ docker run --name=instance1 --detach --publish=7474:7474 --net=cluster --hostname=instance1 \
     --env=NEO4J_DATABASE_MODE=HA --env=NEO4J_HA_ADDRESS=instance1 --env=NEO4J_SERVER_ID=1 \
     --env=NEO4J_INITIAL_HOSTS=instance1:5001,instance2:5001,instance3:5001 \
     neo4j:enterprise
+```
 
-	docker run --name=instance2 --detach --publish 7475:7474 --net=cluster --hostname=instance2 \
+```console
+$ docker run --name=instance2 --detach --publish 7475:7474 --net=cluster --hostname=instance2 \
     --env=NEO4J_DATABASE_MODE=HA --env=NEO4J_HA_ADDRESS=instance2 --env=NEO4J_SERVER_ID=2 \
     --env=NEO4J_INITIAL_HOSTS=instance1:5001,instance2:5001,instance3:5001 \
     neo4j:enterprise
+```
 
-	docker run --name=instance3 --detach --publish 7476:7474 --net=cluster --hostname=instance3 \
+```console
+$ docker run --name=instance3 --detach --publish 7476:7474 --net=cluster --hostname=instance3 \
     --env=NEO4J_DATABASE_MODE=HA --env=NEO4J_HA_ADDRESS=instance3 --env=NEO4J_SERVER_ID=3 \
     --env=NEO4J_INITIAL_HOSTS=instance1:5001,instance2:5001,instance3:5001 \
     neo4j:enterprise
+```
 
 ## Plugins and unmanaged extensions
 
@@ -190,7 +202,7 @@ A workaround is to run the docker image in privileged mode, by adding `--privile
 
 The current best known solution is to enable the use of ptrace in the docker profile of AppArmor. Do this by adding the following line to `/etc/init.d/docker`:
 
-    ptrace peer=docker-default,
+`ptrace peer=docker-default,`
 
 Add this line before the last curly brace, and restart docker.
 
@@ -198,4 +210,6 @@ Add this line before the last curly brace, and restart docker.
 
 To use your own key and certificate, provide an `/ssl` volume with the key and certificate inside. The key filename must end in `.key`, and the certificate in `.cert`. Only one of each file may be present. You must also publish port `7473` to access the HTTPS endpoint.
 
-    docker run --publish 7473:7473 --volume $HOME/neo4j/ssl:/ssl neo4j
+```console
+$ docker run --publish 7473:7473 --volume $HOME/neo4j/ssl:/ssl neo4j
+```