Update index.html (#316)

date changes for upcoming calendar year events
rm Dec office hours, add in March and April

index.html

@@ -138,7 +138,7 @@ <h3>Breaking News</h3>
 		<li> Webinars are held on the first Friday of every month during the academic year, from 2-3pm Eastern Time, and are open to the public.
 		<li> Featured topics will include important efforts in reproducibility, from both ReproNim and others
 			<ul>
-		<li> <strong>Friday, January 5, 2023 </strong></li>
+		<li> <strong>Friday, January 5, 2024 </strong></li>
 				<ul>
 					<li>ReproNim's own <strong>David Kennedy</strong> (PI) provides an update on <em>The State of the ReproNim,</em></li>
 					<li>Webinar presentations are open to the public, <a href="https://umassmed.zoom.us/meeting/register/v5Ikce2qrzkjF_dnGYL7_CeVQ_JqodcCrA">Register</a> in advance for videoconference.</li>
@@ -180,9 +180,11 @@ <h3>Breaking News</h3>
 			</ul>
 		<li><strong>Office Hours Drop-In Sessions</strong> at <strong>1pm Eastern Time</strong>
 			<ul>
-				<li><strong>Thursday December 7, 2023</strong>
+
 				<li><strong>Thursday January 4, 2024</strong>
 				<li><strong>Thursday February 1, 2024</strong>
+				<li><strong>Thursday March 7, 2024</strong>
+				<li><strong>Thursday April 4, 2024</strong>
 
 			</ul>