Update bug_report.md

Explicitly request ethminer command line options.

Author: chfast

.github/ISSUE_TEMPLATE/bug_report.md

@@ -19,10 +19,11 @@ A clear and concise description of what you expected to happen.
 **Screenshots (Optional)**
 If applicable, add screenshots to help explain your problem.
 
-**Desktop (please complete the following information):**
+**Environment (please complete the following information):**
 - Operating System: [e.g. Windows 10]
 - Hardware [e.g. GTX 1070]
 - Ethminer Version [e.g. 0.14]
+- Ethminer options used
 
 **Additional context**
 Add any other context about the problem here.