mention the cycle highlights in the ptl guide

sbauza · sbauza · commit b92259e10acf · 2022-03-01T11:11:14.000+01:00
Change-Id: Ibc13c18595aee90a70dd9345a69fb3344abd2e27
diff --git a/doc/source/contributor/ptl-guide.rst b/doc/source/contributor/ptl-guide.rst
@@ -170,6 +170,9 @@ Milestone 3
 
 * For nova, set the launchpad milestone release as “released” with the date
 
+* Write the `cycle highlights
+  <https://docs.openstack.org/project-team-guide/release-management.html#cycle-highlights>`__
+
 Week following milestone 3
 --------------------------
 
