fixed spelling for googlebot content in app/views/layouts/main.pug

Content was missing a t for googlebot on line 13 in app/views/layouts/main.pug.

app/views/layouts/main.pug

@@ -10,7 +10,7 @@ html(lang='en')
     title= pageTitle ? `${pageTitle} | ${site.name}` : site.name
 
     meta(name="robots", content= "index,follow")
-    meta(name="googlebot", conten= "index,follow")
+    meta(name="googlebot", content= "index,follow")
     meta(content="#4a4a4a" name="theme-color")
     meta(content="black-translucent" name="apple-mobile-web-app-status-bar-style")