chore: Add Feature Request template

Also redirect issues to discussions for project help.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,6 +7,15 @@ assignees: ''
 
 ---
 
+<!-- 
+Before opening an issue, check if your problem already has been solved by looking in:
+- The existing issues: https://github.com/FortySevenEffects/arduino_midi_library/issues
+- The discussions: https://github.com/FortySevenEffects/arduino_midi_library/discussions
+
+Consider opening a discussion instead of an issue if you need help with your project:
+https://github.com/FortySevenEffects/arduino_midi_library/discussions/new
+-->
+
 ## Context
 
 Please answer a few questions to help us understand your problem better and guide you to a solution:

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: new feature
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.