Add dates to two links

index.html

@@ -173,10 +173,12 @@ Illustrious American and Other Verses by Lewis A. Young</a>
 (plain text version
 <a href="static/Illustrious_American_and_Other_Verses_Lewis_A_Young.txt">
 here</a>)</li>
-<li><a href="NeoAbolitionism">Neo Abolitionism presentation</a></li>
-<li><a href="static/photos/march21_2010_march.jpg">Immigration Rights March</a>
+<li><a href="NeoAbolitionism">Neo Abolitionism presentation</a> (2021-12-01)
 </li>
-<li><a href="static/venezuela/index.html">Photographs from Venezuela</a></li>
+<li><a href="static/photos/march21_2010_march.jpg">Immigration Rights March</a>
+(2010-03-21)</li>
+<li><a href="static/venezuela/index.html">Photographs from Venezuela</a>
+(2004-08-02)</li>
 </ul>
 </section>