fixup: desktop example iOS -> macOS

.github/ISSUE_TEMPLATE/bug_report.md

@@ -24,13 +24,13 @@ 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]
+ - OS: [e.g. macOS 12.1]
  - Browser [e.g. chrome, safari]
  - Version [e.g. 22]
 
 **Smartphone (please complete the following information):**
  - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
+ - OS: [e.g. iOS 8.1]
  - Browser [e.g. stock browser, safari]
  - Version [e.g. 22]