chore: simplify issue template (#60)

Author: tigitz

.github/ISSUE_TEMPLATE.md

@@ -1,27 +1,10 @@
-<!-- Provide a general summary of the issue in the Title above -->
+## What's wrong?
+<!-- Describe what's not working or what you'd like to change -->
 
-## Detailed description
+## How to reproduce?
+<!-- For bugs, show how to reproduce the issue -->
 
-Provide a detailed description of the change or addition you are proposing.
-
-Tag the issue with it's proper type
-
-## Context
-
-Why is this change important to you? How would you use it?
-
-How can it benefit other users?
-
-## Possible implementation
-
-Not obligatory, but suggest an idea for implementing addition or change.
-
-## Your environment
-
-Include as many relevant details about the environment you experienced the bug in and how to reproduce it.
-
-* Version used (e.g. PHP 5.6, HHVM 3):
-* Operating system and version (e.g. Ubuntu 16.04, Windows 7):
-* Link to your project:
-* ...
-* ...
+## Environment (if relevant)
+- PHP Version: 
+- OS: 
+- Spellchecker: