(Grav GitSync) Automatic Commit from tanshu

pages/12.training-materials/beer/docs.md

@@ -40,3 +40,9 @@ Beer should be served cold with a fine collar of froth on it. The froth comes fr
 * Strongbow
 * Amstel
 * John Smiths
+
+# Production of Beer:
+[mermaid]
+graph TD;
+  Barley-->Hops;
+[/mermaid]