Make sure future reports and release notes show their publication date

wiki/src/blueprint/monthly_report.mdwn

@@ -91,6 +91,7 @@ Template
 
     \[[!meta title="Tails report for MONTH, YEAR"]]
     \[[!meta date="`date --rfc-2822` eg. Thu, 08 Feb 2018 07:21:15 +0000"]]
+    \[[!pagetemplate template="news.tmpl"]]
 
     \[[!toc]]
 

wiki/src/blueprint/monthly_report/report_2018_07.mdwn

 [[!meta title="Tails report for July, 2018"]]
 [[!meta date="Tue, 10 Apr 2018 01:23:45 +0000"]] XXX: adjust date
+[[!pagetemplate template="news.tmpl"]]
 
 [[!toc]]
 

wiki/src/blueprint/monthly_report/report_2018_08.mdwn

 [[!meta title="Tails report for August, 2018"]]
 [[!meta date="Tue, 10 Apr 2018 01:23:45 +0000"]] XXX: adjust date
+[[!pagetemplate template="news.tmpl"]]
 
 [[!toc]]
 

wiki/src/blueprint/monthly_report/report_2018_09.mdwn

 [[!meta title="Tails report for September, 2018"]]
 [[!meta date="Tue, 10 Apr 2018 01:23:45 +0000"]] XXX: adjust date
+[[!pagetemplate template="news.tmpl"]]
 
 [[!toc]]
 

wiki/src/blueprint/monthly_report/report_2018_10.mdwn

 [[!meta title="Tails report for October, 2018"]]
 [[!meta date="Tue, 10 Apr 2018 01:23:45 +0000"]] XXX: adjust date
+[[!pagetemplate template="news.tmpl"]]
 
 [[!toc]]
 

wiki/src/blueprint/monthly_report/report_2018_11.mdwn

 [[!meta title="Tails report for November, 2018"]]
 [[!meta date="Tue, 10 Apr 2018 01:23:45 +0000"]] XXX: adjust date
+[[!pagetemplate template="news.tmpl"]]
 
 [[!toc]]
 

wiki/src/blueprint/monthly_report/report_2018_12.mdwn

 [[!meta title="Tails report for December, 2018"]]
 [[!meta date="Tue, 10 Apr 2018 01:23:45 +0000"]] XXX: adjust date
+[[!pagetemplate template="news.tmpl"]]
 
 [[!toc]]
 

wiki/src/contribute/how/documentation/release_notes/template.mdwn

 [[!meta date="Tue, $DAY $MON $YEAR 12:34:56 +0000"]]
 [[!meta title="Tails $VERSION is out"]]
+[[!pagetemplate template="news.tmpl"]]
 [[!tag announce]]
 
 This release fixes [[many security