Workaround missing reference

Author: lsaffre

docs/blog/2017/1124.rst

@@ -15,11 +15,11 @@ I also updated the
 :ref:`community`,
 :ref:`hosters`
 and
-:ref:`developers` pages.
+``developers`` pages.
 
 Optimizations in :ref:`avanti`
 ==============================
-     
+
 I continued with :ticket:`2157`.  Teachers complain that the sorting
 order used for the guests of a calendar entry (which Lino fills from
 the enrolments of a course) is not always the same.  And indeed,
@@ -35,7 +35,7 @@ had no :attr:`order_by` specified because it did not inherit from
 `cal.Guests`. So here we specify now manually::
 
     order_by = ['event__start_date', 'event__start_time']
-  
+
 I added a merge action for Client, Person and Company.
 
 New field :attr:`lino_xl.lib.cal.EventType.transparent`.
@@ -58,14 +58,13 @@ Release :ref:`avanti`
 
 manual data migration:
 
-- 
+-
 - coachings.CoachingEnding -> avanti.EndingReason
 - coachings.Coaching and coachings.CoachingType were empty
 
 Quick bugfixes en passant:
-  
+
 - when an admin user acts as an auditor, then Lino showed the full
   names (i.e. did not simulate what the subst_user would see)
 - when cal.RecurrenceSet.max_events was 0, Lino did not remove all
   automatic events but used the site-wide default value.
-