Create ISSUE_TEMPLATE.md

Author: marcmerlin

.github/ISSUE_TEMPLATE.md

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+Before filing an issue, please keep in mind that developer time is extremely limited.  
+We are happy that you are excited to use this project :) but we do not have the time or
+resources to help users with their programming or debugging questions.  
+Please read all of this before you delete it and type your bug if it is still appropriate.
+For reference over 90% of the issues that were mass closed in 2025/11 did not qualify as bugs,
+please help us help you by leaving more time for development.
+
+If you have a problem, make sure that
+1) you read the entire top level README
+2) look at all the sub-pages: https://github.com/hzeller/rpi-rgb-led-matrix?tab=readme-ov-file#sub-pages
+3) if you are using example code, you should be able to read and understand that code
+
+If you need further help, you can ask on discourse:
+https://rpi-rgb-led-matrix.discourse.group/  
+Please understand again that no one is getting paid to help you. Help us help you:
+- say what you have
+- say what you tried
+- if your panel isn't working, you need to read the markings on the chips
+- search discourse and the bug tracker for your chip type if it's a chip issue or your issue type
+("half my lines are black").
+- generally please treat people's time as more valuable than yours, do as much as you can. There are
+many of you and only one of them :)
+
+For panel support issues, you want to refer to https://github.com/hzeller/rpi-rgb-led-matrix/blob/master/README.md#panels-supported .
+The bugs working on chip support are for development, not "I bought this panel and I want you to make it work"
+(it is on you to research which panels are supported before you buy).  
+If you have a commercial application where you need support for a new panel and are willing to pay
+consulting rates for that work, then it is ok to state so in the panel support bug and someone may
+be able to work something out with you, but again be mindful this is not a commercial or paid project.
+
+A few master bugs that may help:
+- Pi5 support: https://github.com/hzeller/rpi-rgb-led-matrix/issues/1603
+- PWM panel support: https://github.com/hzeller/rpi-rgb-led-matrix/issues/466
+- HUB320: https://github.com/hzeller/rpi-rgb-led-matrix/issues/1618
+- Python bindings: https://github.com/hzeller/rpi-rgb-led-matrix/issues/1749
+- C# bindings: https://github.com/hzeller/rpi-rgb-led-matrix/issues/1828
+
+For language bindings, note that the main developers are not using them, so they will lag. Your
+patience is appreciated, and help is welcome :)
+
+Once you have read all this, if you still have a bug to file, you can delete this text and go ahead.