update for 8.6.0 release [build_translations]

Author: jmckenna

en/development/announce/8-6.txt

@@ -71,7 +71,7 @@ Documentation
 -------------
 
 The entire 8.6.0 documentation is also available as a `PDF document <https://download.osgeo.org/mapserver/docs/MapServer.pdf>`__ |image| 
-(1150 pages, with clickable table of contents as well).
+(1155 pages, with clickable table of contents as well).
 
 .. |image| image:: ../../../_static/pdf.png
    :height: 15