Add tags and categories

public/categories/index.xml

+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+    <title>Categories on AIMS Desktop</title>
+    <link>https://desktop.aims.ac.za/categories/</link>
+    <description>Recent content in Categories on AIMS Desktop</description>
+    <generator>Hugo -- gohugo.io</generator>
+    <language>en-us</language>
+    
+	<atom:link href="https://desktop.aims.ac.za/categories/index.xml" rel="self" type="application/rss+xml" />
+    
+    
+  </channel>
+</rss>
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public/tags/index.xml

+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+  <channel>
+    <title>Tags on AIMS Desktop</title>
+    <link>https://desktop.aims.ac.za/tags/</link>
+    <description>Recent content in Tags on AIMS Desktop</description>
+    <generator>Hugo -- gohugo.io</generator>
+    <language>en-us</language>
+    
+	<atom:link href="https://desktop.aims.ac.za/tags/index.xml" rel="self" type="application/rss+xml" />
+    
+    
+  </channel>
+</rss>
\ No newline at end of file