Bug 565690 - Support Mac with Apple silicon

N&N entry for macOS aarch64 builds

Change-Id: I049617256f3745a15f4ef1cbfa48b154fd8ca41d
diff --git a/4.20/platform.html b/4.20/platform.html
index f507d0d..a7e168c 100644
--- a/4.20/platform.html
+++ b/4.20/platform.html
@@ -100,6 +100,13 @@
     <h2>General Updates </h2>
     </td>
   </tr>
+  <tr id="eclipse-mac-aarch64"> <!-- https://bugs.eclipse.org/bugs/show_bug.cgi?id=565690 -->
+    <td class="title">Eclipse support for Mac AArch64(Arm64)</td>
+    <td class="content">
+      Eclipse downloads for the Mac AArch64(Arm64) architecture are now available. Please note that a Mac AArch64 JVM is required to run Eclipse for Mac AArch64.
+      Eclipse and SWT for Mac x86_64 architecture can already run on Apple Silicon hardware under Rosetta translation mode using a x86_64 JVM.
+    </td>
+  </tr>
   <tr id="swt-gtk-disable-insert-emoji"> <!-- https://bugs.eclipse.org/bugs/show_bug.cgi?id=572829 -->
     <td class="title">Option to disable "Insert Emoji" menu entry on Linux</td>
     <td class="content">