docs: slight tweaks to the issue template

Author: nedbat

.github/ISSUE_TEMPLATE/bug_report.md

@@ -11,11 +11,13 @@ assignees: ''
 A clear and concise description of the bug.
 
 **To Reproduce**
-How can we reproduce the problem?  Please *be specific*. Don't link to a failing CI job. Answer the questions below:
+How can we reproduce the problem?  Please *be specific*. Don't link to a failing CI job. Think about the time it will take us to recreate your situation: the easier you make it, the more likely your issue will be addressed.
+
+Answer the questions below:
 1. What version of Python are you using?
 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 shows the problem?  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 code shows the problem?  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 should we run to reproduce the problem? *Be specific*. Include everything, even `git clone`, `pip install`, and so on. Explain like we're five!
 
 **Expected behavior**