Update download page

Change-Id: Ia5d7fb05b6e2bcfe11bd146715de8fd5d578373b
diff --git a/pages/download.html b/pages/download.html
index c0dfcfa..b7403e4 100644
--- a/pages/download.html
+++ b/pages/download.html
@@ -27,11 +27,9 @@
 	</ul>
 	<p>An overview of what is new and noteworthy in Graphiti 0.17.0 can be found <a href="pages/whats-new-0.17.html">here</a>.</p>
 
-<!-- 
 	<h2>Milestones</h2>
-	<p>The latest milestone versions of Graphiti 0.15.0 (Photon release
-		train version) are available for download from here. They will run
-		against Eclipse 4.7 (Oxygen) and Eclipse 4.8 (Photon):</p>
+	<p>The latest milestone versions of Graphiti 0.18.0 (2021-06 release
+		train version) are available for download from here:</p>
 
 	<ul>
 		<li>Composite update site containing all milestone versions (by
@@ -41,19 +39,18 @@
 		</li>
 		<li>Specific milestone versions:</li>
 		<ul>
-			<li>RC3 Update site: <a
-				href="http://download.eclipse.org/graphiti/updates/milestones/S-0.15.0RC3-201806050830">
-					http://download.eclipse.org/graphiti/updates/milestones/S-0.15.0RC3-201806050830</a><br/></li>
+			<li>M3 Update site: <a
+				href="http://download.eclipse.org/graphiti/updates/milestones/S-0.18.0M3-202105181817">
+					http://download.eclipse.org/graphiti/updates/milestones/S-0.18.0M3-202105181817</a><br/></li>
 			<li><a
-				href="http://download.eclipse.org/graphiti/archives/milestones/org.eclipse.graphiti.site-0.15.0RC3.201806050830.zip">
+				href="http://download.eclipse.org/graphiti/archives/milestones/org.eclipse.graphiti.site-0.18.0-202105181817.zip">
 					ZIP file</a></li>
 		</ul>
 		<p>An overview of what is new and noteworthy in Graphiti 0.15.0 can be found <a href="pages/whats-new.html">here</a>.</p>
 	</ul>
--->
 
 	<h2>Nightly Build</h2>
-	<p>The Graphiti nightly (dev, presumably for 2020-06, 0.17.0) version can be downloaded from our Hudson build job folder:</p>
+	<p>The Graphiti nightly (dev, presumably for 2021-06, 0.18.0) version can be downloaded from our Hudson build job folder:</p>
 	<ul>
 		<li>Update site: <a
 			href="https://hudson.eclipse.org/graphiti/job/graphiti.maven.nightly/lastSuccessfulBuild/artifact/last_success/updatesite/">https://hudson.eclipse.org/graphiti/job/graphiti.maven.nightly/lastSuccessfulBuild/artifact/last_success/updatesite/</a></li>