I have launched my app for restaurants in mexico

guys, i truly don't know where to lead my steps next, as i want to get some leads, but i am a one man show with few resources, so, what would you guys do? i have been working in making a digital menu oriented to make digital menus thinked and designed for mobile devices without dowloading nothing, but i do not know how to increase my effectivity capting leads, i am more in the engineering than in the sales field.