Merge branch '6.0' into admin-guide

Author: davisagli

docs/glossary.md

@@ -527,7 +527,7 @@ manual `.po` entries
     Entries which cannot be detected by an automatic code scan.
 
 react-intl
-    A library that is part of [Format.JS](https://formatjs.io/docs/getting-started/installation) which helps developers set up their applications for internationalization.
+    A library that is part of [Format.JS](https://formatjs.github.io/) which helps developers set up their applications for internationalization.
 
 WSGI
     The Web Server Gateway Interface (WSGI, pronounced _WIZ-ghee_) is a simple calling convention for web servers to forward requests to web applications or frameworks written in the Python programming language.

docs/index.md

@@ -36,9 +36,9 @@ admin-guide/index
 manage/index
 deployment/index
 volto/index
+classic-ui/index
 plone.restapi/docs/source/index
 backend/index
-classic-ui/index
 i18n-l10n/index
 conceptual-guides/index
 contributing/index