Fix the typos in exposed posts

I just read the README, and noticed that it is actually so confusing to see how the port is mapped:

```
$ docker run -d -h node2 -v /mnt:/data  \
    -p 10.0.1.2:8300:8300 \
    -p 10.0.1.2:8301:8301 \
    -p 10.0.1.1:8301:8301/udp \
    -p 10.0.1.1:8302:8302 \
    -p 10.0.1.1:8302:8302/udp \
    -p 10.0.1.2:8400:8400 \
    -p 10.0.1.2:8500:8500 \
    -p 10.0.1.2:8600:53/udp \
    progrium/consul -server -advertise 10.0.1.2 -join 10.0.1.1 -bootstrap
```

I don't understand why the node with IP address 10.0.1.2 would want to map 10.0.1.1 into the docker container. And I realized this should be some typos, according to this [commit](https://github.com/progrium/docker-consul/commit/e2a92deec7efcab874c326b97b646312437015be), rest part of README and the command for generating docker command with arguments.