Step 1: Go to Shopify Admin, Then Follow these steps Online Store > Themes > Actions > Edit Code

Step 2: Open theme.liquid file

Step 3: Find the end of the head tag, which looks like “</head>.”

Step 4: Place the code (script) before </head> tag

<script src=”https://kit.fontawesome.com/f7cf0a6419.js”></script>

Step 5: Then, open the Section folder and click header.liquid or some theme has an announcement bar.liquid file separately.

Step 6: Find <p class=”announcement-bar__message h5″> and place this icon code<i class=”fas fa-shipping-fast”></i> after it.

Step 7: Click SAVE the theme.liquid and the header.liquid or announcement bar.liquid file.