Getting clients online is any restaurant's dream

According to statistics, revenue in the Online Food Deliverysegment is projected to reach 5-15% in 2022 for countries all over the world. While COVID-19 pandemia performs as a booster for transition to online food ordering, for many restaurants it is a matter of staying in the business. When it comes to online presence, some restaurants can barely keep their PDF or JPG food menus actual, never mind taking orders online. How can a restaurant establish and maintain the online presence?