Merge pull request #52 from justinmclean/master

heading one level down
diff --git a/pages/index.ad b/pages/index.ad
index d8c0009..5a8adc0 100644
--- a/pages/index.ad
+++ b/pages/index.ad
@@ -14,7 +14,7 @@
 
 The Incubator delegates a few mentors for each podling, as "on the ground" agents to act as liaisons with the various ASF teams: link:http://incubator.apache.org/whoweare.html#the_incubator_project_management_commitee_pmc[Incubator PMC], link:https://selfserve.apache.org/[Infrastructure team], etc., and facilitates the podling's growth and operations.
 
-== Incubator History
+=== Incubator History
 
 The Incubator was created way back in 2002.  Since then (as of Novemeber 2019) has been involved in helping 315 podlings, of which more than 200 have graduated. They have been guided and supported by more than 300 mentors. There are around 45 to 50 podlings in incubation at any one time, and incubation typically takes 1 1/2 years.