Typo: ligtbox -> lightbox (#469)
Typo: ligtbox -> lightbox (#469)

Signed-off-by: Dan Scott <2591e5f46f28d303f9dc027d475a5c60d8dea17a@coffeecode.net>
ampproject/amp-by-example,ampproject/amp-by-example,ampproject/amp-by-example,camelburrito/amp-by-example,camelburrito/amp-by-example,camelburrito/amp-by-example,ampproject/amp-by-example,camelburrito/amp-by-example