Updating issue template, checkmarks are tasks

.github/ISSUE_TEMPLATE.md

@@ -1,11 +1,7 @@
 ### Info:
 - Docker version (`$ docker --version`): 
 - Laradock commit (`$ git rev-parse HEAD`): 
-- System (`place x between the [ ]`):
-	- [ ] Mac
-	- [ ] PC
-	- [ ] Linux
-	- Info:
+- System info (Mac, PC, Linux): 
 
 ### Issue:
 ##### What seems to be going wrong?
@@ -24,6 +20,6 @@ _____
 
 ### Relevant Code:
 
-  ```
-  // place code here
-  ```
+```
+// place code here
+```