Correct Format and Theme Overview Page

hugo.toml

@@ -7,15 +7,20 @@ name = 'Home'
 pageRef = '/'
 weight = 10
 
+[[menus.main]]
+name = 'Overview'
+pageRef = '/theme_overview'
+weight = 20
+
 [[menus.main]]
 name = 'Posts'
 pageRef = '/posts'
-weight = 20
+weight = 30
 
 [[menus.main]]
 name = 'Tags'
 pageRef = '/tags'
-weight = 30
+weight = 40
 
 [module]
   [module.hugoVersion]