Move "hot topic for this month" to April.

It did not happen in March.

wiki/src/blueprint/monthly_report/report_2018_03.mdwn

@@ -143,11 +143,9 @@ User experience
 Hot topics on our help desk
 ===========================
 
-1. The most annoying hot topic of the month is without any doubt that [[Automatic upgrades from 3.6.1 to 3.6.2 are not working|https://labs.riseup.net/code/issues/15485]]
+1. Several users complained about [[Tails Installer failing|https://labs.riseup.net/code/issues/15432]]
 
-2. Several users also complained about [[Tails Installer failing|https://labs.riseup.net/code/issues/15432]]
-
-3. And there seems to be more people complaining about [[loosing their Persistent Volume|https://labs.riseup.net/code/issues/10976]] than usual.
+2. And there seems to be more people complaining about [[loosing their Persistent Volume|https://labs.riseup.net/code/issues/10976]] than usual.
 
 Infrastructure
 ==============

wiki/src/blueprint/monthly_report/report_2018_04.mdwn

@@ -47,7 +47,8 @@ Hot topics on our help desk
 
 XXX: Ask tails-bugs@boum.org to list hot topics for the last month.
 
-1.
+1. XXX: The most annoying hot topic of the month is without any doubt that [[Automatic upgrades from 3.6.1 to 3.6.2 are not working|https://labs.riseup.net/code/issues/15485]]
+
 
 1.