github: tweak issue template.

.github/ISSUE_TEMPLATE.md

@@ -5,13 +5,17 @@ Feel free to write an issue in your preferred format, however if in doubt, use
 the following checklist as a guide for what to include.
 
 * Have you tried the latest master version from Git?
+* Do you have some idea of what the underlying problem may be?
+  https://mitogen.rtfd.io/en/stable/ansible.html#common-problems has
+  instructions to help figure out the likely cause and how to gather relevant
+  logs.
 * Mention your host and target OS and versions
 * Mention your host and target Python versions
 * If reporting a performance issue, mention the number of targets and a rough
   description of your workload (lots of copies, lots of tiny file edits, etc.)
-* If reporting a crash or hang in Ansible, please rerun with -vvvv and include
+* If reporting a crash or hang in Ansible, please rerun with -vvv and include
-  the last 200 lines of output, along with a full copy of any traceback or
+  200 lines of output around the point of the error, along with a full copy of
-  error text in the log. Beware "-vvvv" may include secret data! Edit as
+  any traceback or error text in the log. Beware "-vvv" may include secret
-  necessary before posting.
+  data! Edit as necessary before posting.
 * If reporting any kind of problem with Ansible, please include the Ansible
   version along with output of "ansible-config dump --only-changed".