moving files to dub folder

Author: smarru

lectures.html

@@ -275,7 +275,7 @@ <h6 class="card-subtitle mb-2 text-muted">February 11th, 2021</h6>
 			        Apache Kafka case study
                             </li>
                         </ul>
-                        <a href="http://courses.airavata.org/slides/Spring2021-ApacheKafkaDistributedSystems.pdf"
+                        <a href="http://courses.airavata.org/slides/spring2021/Spring2021-ApacheKafkaDistributedSystems.pdf"
                            class="btn btn-sm btn-link-iu-crimson">Scalable, Fault-Tolerant Messaging in Distributed Systems</a>
                         <a href="https://iu.mediaspace.kaltura.com/media/t/1_9a2cwlts"
                            class="btn btn-sm btn-link-iu-crimson">Lecture 8 Recording</a>
@@ -301,7 +301,7 @@ <h6 class="card-subtitle mb-2 text-muted">February 18th, 2021</h6>
                             </li>
 
                         </ul>
-                        <a href="http://courses.airavata.org/slides/Spring2021-SGACourse-RaftLogsEtc.pdf"
+                        <a href="http://courses.airavata.org/slides/spring2021/Spring2021-SGACourse-RaftLogsEtc.pdf"
                            class="btn btn-sm btn-link-iu-crimson">Log-Centric Distributed Systems and Raft</a>
                         <a href="https://iu.mediaspace.kaltura.com/media/t/1_93gdhlug"
                            class="btn btn-sm btn-link-iu-crimson">Lecture 9 Recording</a>
@@ -326,7 +326,7 @@ <h6 class="card-subtitle mb-2 text-muted">February 23rd, 2021</h6>
                                 Leader election
                             </li>
                         </ul>
-			<a href="http://courses.airavata.org/slides/Spring2021-SGACourse-RaftLogsEtc.pdf" class="btn btn-sm btn-link-iu-crimson">Log-Centric Distributed Systems and Raft</a>
+			<a href="http://courses.airavata.org/slides/spring2021/Spring2021-SGACourse-RaftLogsEtc.pdf" class="btn btn-sm btn-link-iu-crimson">Log-Centric Distributed Systems and Raft</a>
                         <a href="https://iu.mediaspace.kaltura.com/media/t/1_lfnhx807"
                            class="btn btn-sm btn-link-iu-crimson">Lecture 10 Recording</a>
                     </div>