Optimize bug_report.md (#23)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,7 +1,7 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-title: ''
+title: 'BUG: '
 labels: bug
 assignees: ''
 
@@ -24,15 +24,14 @@ A clear and concise description of what you expected to happen.
 If applicable, add screenshots to help explain your problem.
 
 **Desktop (please complete the following information):**
- - OS: [e.g. iOS]
- - Browser [e.g. chrome, safari]
- - Version [e.g. 22]
+ - **Browser**: [e.g. chrome, safari]
+ - **Version**: [e.g. 22]
 
 **Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
+ - **Device**: [e.g. iPhone6]
+ - **OS**: [e.g. iOS8.1]
+ - **Browser**: [e.g. stock browser, safari]
+ - **Version**: [e.g. 22]
 
 **Additional context**
 Add any other context about the problem here.