config, template site complained when this was not an array, go ahead and add square brackets.

hugo.yaml

@@ -150,7 +150,7 @@ params:
 
   # Metadata mostly used in document's head
   description: "Written works by Hyperling. Includes articles, recipes, poetry, guides, video links, eBooks, announcements, and more."
-  keywords: "homepage, blog, recipes, crafts, food, seasonings, woodworking, poetry, poems"
+  keywords: ["homepage, blog, recipes, crafts, food, seasonings, woodworking, poetry, poems"]
   images: [""]
   author: Chad Michael Greenwood