Fixed a bug with examples displayed not as intended

Previously footer looked like that (due to using `footer` which splits message to words and reformats them):

```
Examples: elm-get install # install everything needed by elm_dependencies.json
elm-get install tom/Array # install a specific github repo elm-get install
tom/Array 1.2 # install a specific version tag github repo
```

And now it look like that:

```
Examples:
  elm-get install                # install everything needed by elm_dependencies.json
  elm-get install tom/Array      # install a specific github repo
  elm-get install tom/Array 1.2  # install a specific version tag github repo
```