Small typo in the getting started section

[swaechter]

Thank you for your great Typescript example! I just found a small typo in the 'Want to use this project?' section of the README.md file:

Wrong: gulp script
Correct: gulp scriptS

A small but important typo ;)

[oferze]

I just fixed it in #3 , hope @mjhea0 will merge it soon!

BTW you can do this instead of submitting an issue, completely in GitHub.