Resolve "Replace all links to software.hifis.net"

Closes #131 (closed)

_roadmap/software/2019-12-01-tasks.md

@@ -5,7 +5,7 @@ service: software
 ---
 
 ## Initial launch of software.hifis.net
-The platform software.hifis.net is launched as
+The platform software.hifis.net (meanwhile moved to [hifis.net](https://hifis.net)) is launched as
 the future home for software development services within Helmholtz and HIFIS.
 The static site is built with Jekyll.
 Its sources are available on