add roadmap events for community and Survey

_roadmap/overall/2021-04-15-tasks.md

+---
+date: 2021-04-15
+title: Tasks in April 2021
+service: overall
+---
+
+## Roll out [HIFIS Survey 2021](https://software.hifis.net/services/hifissurvey)
+Starting data collection from Helmholtz employees about their used IT-related workflows and software tools.
+The data will be analysed to further improve our services.
+Results will be published later in the year.

_roadmap/overall/2021-09-15-tasks.md

+---
+date: 2021-09-15
+title: Tasks in September 2021
+service: overall
+---
+
+## Publish [HIFIS Survey 2021](https://software.hifis.net/services/hifissurvey) Report
+Publish results of HIFIS survey.

_roadmap/software/2021-01-15-tasks.md

+---
+date: 2021-01-15
+title: Tasks in January 2021
+service: software
+---
+
+## Publish Helmholtz Hacky Hour plans for the first half of 2021 
+The community work package publishes further details for the Helmholtz Hacky Hour for the first half of 2021 on the [events page](https://software.hifis.net/events).

_roadmap/software/2021-05-30-tasks.md

+---
+date: 2021-05-30
+title: Tasks in May 2021
+service: software
+---
+
+## Evaluation of Helmholtz-wide Research Software Directory ([RSD](https://github.com/research-software-directory/research-software-directory/blob/master/README.md#what-is-it)) Prototype
+HIFIS Community evaluates the reusability of the [Netherlands RSD](https://research-software.nl/) as RSD for all Helmholtz centers.

_roadmap/software/2021-06-30-tasks.md

@@ -6,3 +6,6 @@ service: software
 
 ## Publish training program for the second half of 2021 
 The education and training work package publishes the offered training events for the second half of 2021 on <{% link events.md %}>.
+
+## Publish Helmholtz Hacky Hour plans for the second half of 2021 
+The community work package publishes further details for the Helmholtz Hacky Hour for the second half of 2021 on the [events page]({% link events.md %}).