chore: encourage giving more details in issues

Author: silvenon

.github/ISSUE_TEMPLATE.md

@@ -5,5 +5,6 @@
 **If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via [CodeSandbox](https://codesandbox.io/) or similar (Template: https://codesandbox.io/s/lvnpplww9).**
 
 **What is the expected behavior?**
+<!-- Please be very specific here. Transitions can be complicated, so more words can really help us understand your desired result. -->
 
 **Which versions, and which browser / OS are affected by this issue? Did this work in previous versions?**