Update flowchart.md mermaid-js#5195

packages/mermaid/src/docs/syntax/flowchart.md

@@ -778,6 +778,15 @@ flowchart TD
 
 Mermaid is compatible with Font Awesome up to version 5, Free icons only. Check that the icons you use are from the [supported set of icons](https://fontawesome.com/v5/search?o=r&m=free).
 
+You can use this method to add mermaid including the fontawesome icon to a web page:
+
+```html
+<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css" rel="stylesheet" />
+<script type="module">
+  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
+</script>
+```
+
 ## Graph declarations with spaces between vertices and link and without semicolon
 
 - In graph declarations, the statements also can now end without a semicolon. After release 0.2.16, ending a graph statement with semicolon is just optional. So the below graph declaration is also valid along with the old declarations of the graph.