docs: tweak the bug report template

Author: nedbat

.github/ISSUE_TEMPLATE/bug_report.md

@@ -13,9 +13,9 @@ A clear and concise description of the bug.
 **To Reproduce**
 How can we reproduce the problem?  Please *be specific*. Don't just link to a failing CI job. Answer the questions below:
 1. What version of Python are you using?
-1. What version of coverage.py are you using? The output of `coverage debug sys` is helpful.
+1. What version of coverage.py shows the problem? The output of `coverage debug sys` is helpful.
 1. What versions of what packages do you have installed? The output of `pip freeze` is helpful.
-1. What code are you running?  Give us a specific commit of a specific repo that we can check out.
+1. What code are you running?  Give us a specific commit of a specific repo that we can check out. If you've already worked around the problem, please provide a commit before that fix.
 1. What commands did you run?
 
 **Expected behavior**