Improve formatting of instructions.

Now, it's time to run the container. You have two options:

 * We maintain a script that automatically determines a free OR and obfs4 port for you. The script only requires your email address as argument:

1. We maintain a script that automatically determines a free OR and obfs4 port for you. The script only requires your email address as argument:

   ```

    $ curl https://dip.torproject.org/anti-censorship/docker-obfs4-bridge/raw/master/deploy-container.sh > deploy-container.sh

   $ curl https://dip.torproject.org/torproject/anti-censorship/docker-obfs4-bridge/raw/master/deploy-container.sh > deploy-container.sh

   $ bash deploy-container.sh address@email.com

   ```

 * If you would rather provide your own ports, run the following command and replace XXX with your OR port, YYY with your obfs4 port, and address@email.com with your email address. Don't forget the semicolon after the environment variables.

2. If you would rather provide your own ports, run the following command and replace `XXX` with your OR port, `YYY` with your obfs4 port, and `address@example.com` with your email address. Don't forget the semicolon after the environment variables.

   ```

    OR_PORT=XXX PT_PORT=YYY EMAIL=address@email.com; \

   OR_PORT=XXX PT_PORT=YYY EMAIL=address@example.com; \

   docker run -d \

     -e "OR_PORT=$OR_PORT" -e "PT_PORT=$PT_PORT" -e "EMAIL=$EMAIL" \

     -p "$OR_PORT":"$OR_PORT" -p "$PT_PORT":"$PT_PORT" \