Add documentation for EEF 2.4

Change-Id: I647ebb986dbc77ff697bdce6ca10fab980a3b414
Signed-off-by: Stéphane Bégaudeau <stephane.begaudeau@obeo.fr>
diff --git a/sections/download/download.html b/sections/download/download.html
index 13155a0..ddf38c7 100644
--- a/sections/download/download.html
+++ b/sections/download/download.html
@@ -3,7 +3,7 @@
 
   <h3>Release Train Update Site URLs (recommended)</h3>
   <ul>
-    <li>2.1.x and 1.5.1 - http://download.eclipse.org/releases/photon</li>
+    <li>2.1.x and 1.5.1 - http://download.eclipse.org/releases/2019-12</li>
     <li>2.0.x and 1.5.1 - http://download.eclipse.org/releases/oxygen</li>
     <li>1.7.x and 1.5.1 - http://download.eclipse.org/releases/neon</li>
     <li>1.5.0 - http://download.eclipse.org/releases/mars</li>
@@ -21,6 +21,9 @@
 
   <h3>Individual Update Site URLs (advanced users)</h3>
   <ul>
+    <li>EEF 2.1.4 - http://download.eclipse.org/modeling/emft/eef/updates/releases/2.1/R202002101015</li>
+    <li>EEF 2.1.3 - http://download.eclipse.org/modeling/emft/eef/updates/releases/2.1/R201909051307</li>
+    <li>EEF 2.1.2 - http://download.eclipse.org/modeling/emft/eef/updates/releases/2.1/R201903071543</li>
     <li>EEF 2.1.1 - http://download.eclipse.org/modeling/emft/eef/updates/releases/2.1/R201810110645</li>
     <li>EEF 2.1.0 - http://download.eclipse.org/modeling/emft/eef/updates/releases/2.1/R201805131837</li>
     <li>EEF 2.0.2 - http://download.eclipse.org/modeling/emft/eef/updates/releases/2.0/R201809211243</li>