Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,20 @@
+---
+name: Bug report
+about: Things to provide along with a report
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+# Things needed to file a bug report
+
+Describe the issue and do not forget to attach the following info to get help quicker:
+
+* PostgreSQL version
+* Which way did you install PostgreSQL, sources or binaries?
+* Operating system
+* All the other extensions that you use.
+* `shared_preload_libraries` value from `postgresql.conf`
+* Can you reproduce your issue on a clean cluster? If yes, state exactly how.
+* Does the server crash? Try to get a [stack trace](https://wiki.postgresql.org/wiki/Getting_a_stack_trace_of_a_running_PostgreSQL_backend_on_Linux/BSD).