Update issue template [ci skip]

ISSUE_TEMPLATE.md

-When you open an issue, it would be super helpful if you could include the following information, if relevant: :100:
-- [ ] What browser are you using? (Or are you using the Mac App?)
-- [ ] What OS are you using?
-- [ ] What version of Metabase are you using?
-- [ ] What database are you using?
- 
-Thanks! Luv, Team Metabase :heart_eyes_cat:
+When you open an issue, please fill in the blanks, if relevant: 
+
+*  I am using the _____ browser.
+*  My computer's OS is _____.
+*  My database is _____.
+*  My Metabase version is _____.