Update ISSUE_TEMPLATE.md

ISSUE_TEMPLATE.md

@@ -14,8 +14,12 @@
 Use [a gist](gist.github.com) if the code exceeds 30 lines
 
 **checklist:**
+- [] I have **read** the README.md file thoroughly
+- [] I have searched existing issues to see if there is anything I have missed.
 - [] The latest [release](https://github.com/z3t0/Arduino-IRremote/releases/latest) is used
-- [] Any code referenced is provided
+- [] Any code referenced is provided and if over 30 lines a gist is linked INSTEAD of it being pasted in here
 - [] The title of the issue is helpful and relevant 
 
-The above is a short template allowing you to make detailed issues!
+** We will start to close issues that do not follow these guidelines as it doesn't help the contributors who spend time trying to solve issues if the community ignores guidelines!**
+
+The above is a short template allowing you to make detailed issues!