fix: 🐛 fix head class name (#2962)

diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 9c352cd..2ff97b0 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -3,7 +3,7 @@
 {{- if eq hugo.Environment "preview" -}}
   <!-- deploy preview -->
 {{- end -}}
-  <head {{- if hugo.IsProduction -}}class="live-site"{{- end -}}>
+  <head {{- if hugo.IsProduction -}} class="live-site"{{- end -}}>
     {{ partial "head.html" . }}
   </head>
   <body class="td-{{ .Kind }}{{- if ne (lower .Params.cid) "" -}}{{- printf " cid-%s" (lower .Params.cid) -}}{{- end -}}">