docs: update content

Author: mrholek

docs/content/components/dropdowns.md

@@ -1,6 +1,6 @@
 ---
 layout: docs
-title: Dropdowns
+title: Bootstrap dropdowns
 description: Bootstrap dropdown component allows you to toggle contextual overlays for displaying lists, links, and more html elements.
 group: components
 aliases:

docs/content/components/footer.md

@@ -4,7 +4,8 @@ title: Bootstrap Footer
 description: Bootstrap Footer is an additional navigation used for displaying general information that a user might want to access from any page within your site. It is a place to display boilerplate text about the site, company info, copyrights, links to a contact form, sitemap, FAQ and other such resources.
 group: components
 aliases:
-  - "/components/footer/"
+  - "/4.0/components/footer/"
+  - "/4.1/components/footer/"
 toc: true
 ---