layout/theme.liquid and amends it to include the Nosto tagging snippet. To better understand snippets and the Shopify theme structure, we recommend reading Shopify's theme development guide.layout/theme.liquid) to include the Nosto semantic markup snippet using the following include:nosto-tagging.liquid is uploaded to the snippets directory of your theme. The snippet contains all the Liquid templates needed to render markup that gives Nosto insights into the page context.