Add list of volunteers for the next reports

wiki/src/blueprint/monthly_report.mdwn

@@ -5,6 +5,21 @@
 This page could be a good place to gather HOWTO, tips, template, etc.
 for the monthly reports.
 
+[[!toc]]
+
+Volunteers for the next reports
+===============================
+
+The month in the list corresponds to the month to be reported about. For
+example, the report about April in the list will be written at the
+beginning of May.
+
+  - April: u
+  - May: spriver
+  - June: sajolida
+  - July: ?
+  - August: intrigeri
+
 Checklist
 =========
 
@@ -20,7 +35,6 @@ Checklist
 - Redmine view of closed issues:
   - <https://labs.riseup.net/code/projects/tails/issues?query_id=212>
 
-
 Publishing
 ==========
 
@@ -35,6 +49,9 @@ XXX: Send link to tor-reports@lists.torproject.org and tails-project@boum.org
      - Reply-to: tails-project@boum.org
 
        https://tails.boum.org/news/report_YEAR_MO/
+  - Make sure that we already have a volunteer for next month, or
+    otherwise raise the issue on tails-project@boum.org and update the
+    [[list of volunteers|monthly_report#index1h1]].
 
 Template
 ========