Julie here from Shopify Support.
For those with brick and mortar stores, adding a "Get Directions" feature to your website is a fantastic idea. We actually have a few apps in the Shopify App Store that will allow you to do this! A few popular options I suggest checking out include:
All of these apps have great reviews and don't require any custom code to install. They're also highly customizable and integrate directly with Google Maps, so you can rest assured knowing that customers will be getting accurate directions.
If you'd like to see the apps in action, you can access screenshots and example stores directly from each About page, right below the app description. From what I can see, all of them will allow you to add the map to either your homepage, or a standalone page that can be linked to from your main menu.
I hope this provides you with some options worth considering and I'd love to hear which app you end up choosing. Do you have more than one location? Where on the homepage are you wanting this feature to appear?