Merge branch 'hifis-relaunch-redated' into 'master'

HIFIS relaunch newspost: redated to Sep 16

See merge request hifis/hifis.net!81

_posts/2020/09/2020-09-14-hifis-homepage-helpdesk.md → _posts/2020/09/2020-09-16-hifis-homepage-helpdesk.md

 ---
 title: "HIFIS Pages and Helpdesk launched"
 title_image: default
-data: 2020-09-14
+data: 2020-09-16
 authors:
   - jandt
   - huste