Update issue templates

.github/ISSUE_TEMPLATE/change-request.md

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+---
+name: Change request
+about: Specify and motivate a change needed to the requirements
+title: "[Change]"
+labels: ''
+assignees: ''
+
+---
+
+# Use case
+Describe a scenario that is affected by your change request.
+
+# Reflect on the current requirements about that
+How are the requirements on this currently
+
+# Motivate the change
+What is not working correctly with the way it is done right now?
+What improvements can you see?
+
+# Metadata
+
+Complete the table below
+|Module||
+|Requirement ID(s)||
+
+# Proposed changes
+How would you change the formulations of the mentioned requirements?
+
+# Alternative solutions
+What other solutions did you think of?
+
+Are they worse for a certain reason or equal?