Bug 572843 - Update links for April newsletter

Signed-off-by: Eric Poirier <eric.poirier@eclipse-foundation.org>
diff --git a/eclipse_newsletter/2021/april/content/en_index.php b/eclipse_newsletter/2021/april/content/en_index.php
index 2950a21..e4dbf06 100644
--- a/eclipse_newsletter/2021/april/content/en_index.php
+++ b/eclipse_newsletter/2021/april/content/en_index.php
@@ -352,7 +352,7 @@
 			<table border="0" cellpadding="0" cellspacing="0" class="mcnButtonContentContainer" style="border-collapse: separate !important;border-radius: 0px;background-color: #F88D2B;mso-table-lspace: 0pt;mso-table-rspace: 0pt;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;">
 				<tbody>
 					<tr>
-						<td align="center" class="mcnButtonContent" style="font-family: Arial;font-size: 16px;padding: 10px;mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;" valign="middle"><a class="mcnButton " href="https://eclipse.org/community/eclipse_newsletter/2021/march/3.php" style="font-weight: bold;letter-spacing: normal;line-height: 100%;text-align: center;text-decoration: none;color: #FFFFFF;mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;display: block;" target="_blank" title="Read More">Read More</a></td>
+						<td align="center" class="mcnButtonContent" style="font-family: Arial;font-size: 16px;padding: 10px;mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;" valign="middle"><a class="mcnButton " href="https://eclipse.org/community/eclipse_newsletter/2021/april/3.php" style="font-weight: bold;letter-spacing: normal;line-height: 100%;text-align: center;text-decoration: none;color: #FFFFFF;mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;display: block;" target="_blank" title="Read More">Read More</a></td>
 					</tr>
 				</tbody>
 			</table>
@@ -504,7 +504,7 @@
                     <td class="mcnCaptionRightImageContent" align="center" valign="top" style="mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;">
                     
                         
-                        <a href="https://newsroom.eclipse.org/news/announcements/eclipse-foundation-launches-adoptium-working-group-multi-vendor-delivery-java" title="" class="" target="_blank" style="mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;">
+                        <a href="https://outreach.eclipse.foundation/openvsx" title="" class="" target="_blank" style="mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;">
                         
 
                         <img alt="" src="https://mcusercontent.com/eaf9e1f06f194eadc66788a85/images/2308890a-29c0-443e-be70-782211df9807.png" width="176" style="max-width: 800px;border: 0;height: auto;outline: none;text-decoration: none;-ms-interpolation-mode: bicubic;vertical-align: bottom;" class="mcnImage">
@@ -1027,7 +1027,7 @@
 <a href="https://ecdtools.eclipse.org/events/idesummit/2021/" target="_blank" style="mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;color: #2197ce;font-weight: normal;text-decoration: underline;">Cloud IDE Day 2021</a><br>
 May 19, 2021</div>
 
-<p style="text-align: center;margin: 10px 0;padding: 0;mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;color: #202020;font-family: Helvetica;font-size: 16px;line-height: 150%;"><a href="https://www.fasten-project.eu/view/Events/FASTEN_Virtual_Workshop" style="mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;color: #2197ce;font-weight: normal;text-decoration: underline;"><img data-file-id="2944" height="100" src="https://mcusercontent.com/eaf9e1f06f194eadc66788a85/images/8277d243-0417-4c5a-9453-0126f496d3c6.png" style="border: 0px initial;width: 200px;height: 100px;margin: 0px;outline: none;text-decoration: none;-ms-interpolation-mode: bicubic;" width="200"></a><br>
+<p style="text-align: center;margin: 10px 0;padding: 0;mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;color: #202020;font-family: Helvetica;font-size: 16px;line-height: 150%;"><a href="https://iot.eclipse.org/eclipse-virtual-iot-2021/" style="mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;color: #2197ce;font-weight: normal;text-decoration: underline;"><img data-file-id="2944" height="100" src="https://mcusercontent.com/eaf9e1f06f194eadc66788a85/images/8277d243-0417-4c5a-9453-0126f496d3c6.png" style="border: 0px initial;width: 200px;height: 100px;margin: 0px;outline: none;text-decoration: none;-ms-interpolation-mode: bicubic;" width="200"></a><br>
 <a href="https://iot.eclipse.org/eclipse-virtual-iot-2021/" target="_blank" style="mso-line-height-rule: exactly;-ms-text-size-adjust: 100%;-webkit-text-size-adjust: 100%;color: #2197ce;font-weight: normal;text-decoration: underline;">Virtual IoT and Edge Days</a><br>
 May 26-27, 2021<br>
 <br>