add RMS talk event

events.xml

@@ -3,6 +3,27 @@
 <!DOCTYPE eventdefs SYSTEM "csc.dtd" [<!ENTITY mdash "&#x2014;">]>
 <eventdefs>
   <!-- Fall 2020-->
+  <eventitem date="2020-11-27" time="3:30 pm" room="Online" title="Dr. Richard Stallman Talk">
+    <short>
+      <p>
+        Dr Richard Stallman will be talking about "Why operating systems and other software should be free".
+      </p>
+      <p>
+        Streamed at <a href="https://live.csclub.uwaterloo.ca/2020-11-27-rms.html">live.csclub.uwaterloo.ca/2020-11-27-rms.html</a>
+      </p>
+    </short>
+    <abstract>
+      <p>
+        Dr Stallman led the development of the GNU operating system, founded the Free Software Foundation, and launched the free software movement.
+      </p>
+      <p>
+        He will be talking about "Why operating systems and other software should be free".
+      </p>
+      <p>
+        The event will be streamed at <a href="https://live.csclub.uwaterloo.ca/2020-11-27-rms.html">live.csclub.uwaterloo.ca/2020-11-27-rms.html</a>
+      </p>
+    </abstract>
+  </eventitem>
   <eventitem date="2020-11-25" time="7:00 pm" room="Online" title="Roasting Our First Year Resumes">
     <short>
       <p>
@@ -11,9 +32,6 @@
       <p>
         &#128073; Streamed at <a href="https://twitch.tv/uwcsclub">twitch.tv/uwcsclub</a>
       </p>
-      <p>
-        &#128073; Register at: <a href="https://bit.ly/3fkVubG">bit.ly/3fkVubG</a>
-      </p>
     </short>
     <abstract>
       <p>