Update ISSUE_TEMPLATE.md

ISSUE_TEMPLATE.md

@@ -1,33 +1,35 @@
 I confirm (by marking "x" in the [ ] below): 
 
-- [ ] This is not a feature idea. Feature ideas go here: http://www.mattermost.org/feature-ideas/
 - [ ] This is not a troubleshooting question. Troubleshooting questions go here: http://www.mattermost.org/troubleshoot/
-- [ ] This is a product defect issue that can be reproduced using the steps listed below.
-- [ ] I have read [CONTRIBUTING.md](https://github.com/mattermost/desktop/blob/master/CONTRIBUTING.md). 
+- [ ] I have read [contributing guidelines](https://github.com/mattermost/desktop/blob/master/CONTRIBUTING.md). 
 
 ---
 
-#### Summary
-
+**Summary**
+<!--
 Issue in one concise sentence.
+-->
 
-#### Steps to reproduce
+**Steps to reproduce**
 
+<!--
 Please include: 
 - Operating System
 - Mattermost Desktop App version (See **Help > Version Number**) 
 - Mattermost Server version (See **Mattermost Menu > About Mattermost**, where **Mattermost Menu** can be accessed by clicking on three dots next to your profile picture) 
 - Clear steps to reproduce the issue
+-->
 
-#### Expected behavior
+**Expected behavior**
 
-Describe your issue in detail.
+**Observed behavior**
 
-#### Observed behavior
+<!--
+Please include relevant error messages and/or screenshots.
+-->
 
-What did you see happen? Please include relevant error messages and/or screenshots.
-
-#### Possible fixes
+**Possible fixes**
 
+<!--
 If you can, link to the line of code that might be responsible for the problem.
-
+-->