Default <br /> element in get started commands section


https://developer.mozilla.org/en-US/docs/Web/HTML/Element/br
Fix wget command in get started commands section


Before it was downloading `master.zip`, that conflicted with next command, `unzip vagrantpress-master.zip`.

Signed-off-by: Rogerio Prado de Jesus <rogeriopradoj@gmail.com>
Merge pull request #29 from rogeriopradoj/fix-get-started-commands-section

Fix get started commands section