Markdown fixes in the readme.

README.md

@@ -115,8 +115,8 @@ The environment variables are:
 * `AWS_SSH_PRIVKEY` - The path to the private key for the named keypair
 
 For VirtualBox, you can simply ignore setting any of the environment
-variables and omit the ``provider`` flag. VirtualBox is still supported with
+variables and omit the `provider` flag. VirtualBox is still supported with
-Vagrant <= 1.1:
+Vagrant &lt;= 1.1:
 
 ```bash
 $ vagrant up
@@ -226,7 +226,7 @@ Setting up a dev environment
 
 Instructions that is verified to work on Ubuntu 12.10,
 
-```
+```bash
 sudo apt-get -y install lxc wget bsdtar curl libsqlite3-dev golang git pkg-config
 
 export GOPATH=~/go/
@@ -243,7 +243,7 @@ go install -v github.com/dotcloud/docker/...
 
 Then run the docker daemon,
 
-```
+```bash
 sudo $GOPATH/bin/docker -d
 ```