trying metadata keywords in header

themes/nipponalba/layouts/partials/head.html

@@ -4,7 +4,7 @@
     {{- hugo.Generator -}}
     <meta name="viewport" content="width=device-width,initial-scale=1,viewport-fit=cover" />
     <meta name="description" content="{{ .Site.Params.description }}" />
-    <meta name="keywords" content="{{ with .Params.tags }}{{ delimit . ', '}}{{ end }}" />
+    <meta name="keywords" content="{{ with .Params.tags }}{{ delimit . ", "}}{{ end }}" />
     <link rel="stylesheet" href="{{ `css/style.css` | absURL }}" type="text/css">
     <link rel="preload" as="font" href="/fonts/Inter-Regular.woff2" type="font/woff2" crossorigin="anonymous" />
     <link rel="preload" as="font" href="/fonts/Inter-Regular.woff" type="font/woff" crossorigin="anonymous" />