update memu and few more improvement

config/_default/languages.toml

@@ -0,0 +1,16 @@
+[en]
+  weight = 10
+  disabled = false
+  contentDir = "content/en"
+  languageCode = "en"
+  languageName = "English"
+  hasCJKLanguage = false
+  copyright = "This work is licensed under CC BY-NC-SA-4.0."
+[zh-CN]
+  weight = 20
+  disabled = false
+  contentDir = "content/zh-cn"
+  languageCode = "zh-CN"
+  languageName = "简体中文"
+  hasCJKLanguage = true
+  copyright = "本站内容采用 CC BY-NC-SA 4.0 国际许可协议。"