Add mkdocs-redirects plugin

Now the redirects are specified in mkdocs.yml

docs/ftldns/database.md

@@ -1,3 +0,0 @@
----
-redirect: /database/
----

docs/ftldns/regex/index.md

@@ -1,6 +0,0 @@
----
-title: Redirect for /ftldns/regex/
-description: This url changed from page to subsection, must redirect from other sites to new page.
-last_updated: Mon Jan 14 11:47:02 2019 UTC
-redirect: /ftldns/regex/overview/
----

docs/main/presentations.md

@@ -1,6 +0,0 @@
----
-title: Presenting Pi-hole
-description: Support for presenters
-last_updated: Sun Feb 9 2020
-redirect: /
----

mkdocs.yml

@@ -135,3 +135,8 @@ extra_css:
 plugins:
   - search
   - git-revision-date-localized
+  - redirects:
+      redirect_maps:
+        'ftldns/database.md': database/index.md
+        'ftldns/regex/index.md': ftldns/regex/overview.md
+        'main/presentations.md': index.md

requirements.txt

@@ -2,3 +2,4 @@ markdown-include==0.5.1
 mkdocs==1.1.2
 mkdocs-git-revision-date-localized-plugin==0.5.2
 mkdocs-material==5.2.2
+mkdocs-redirects==1.0.1