Update bug_report.md issue template (#749)

Author: LincolnPuzey

.github/ISSUE_TEMPLATE/bug_report.md

@@ -12,38 +12,55 @@ assignees: ''
 * [ ] Does your title concisely summarize the problem?
 * [ ] Did you include a minimal, reproducible example?
 * [ ] What OS are you using?
-* [ ] What version of Dramatiq are you using?
 * [ ] What version of Python are you using?
+* [ ] What version of Dramatiq are you using?
+* [ ] What Broker are you using?
 * [ ] What did you do?
 * [ ] What did you expect would happen?
 * [ ] What happened?
 
 
 ## What OS are you using?
 
-<!-- for example: Ubuntu 16.04 or macOS 10.13.3 -->
+<!-- For example: Ubuntu 16.04 or macOS 10.13.3 -->
+
+
+## What version of Python are you using?
+
+<!-- Run this command to find out: python --version -->
 
 
 ## What version of Dramatiq are you using?
 
-<!-- run this command to find out: python -c 'import dramatiq; print(dramatiq.__version__)' -->
+<!-- Run this command to find out: python -c 'import dramatiq; print(dramatiq.__version__)' -->
 
 
-## What version of Python are you using?
+## What Broker are you using?
 
-<!-- run this command to find out: python --version -->
+<!-- RabbitMQ, Redis or a broker from a third-party package (include the version of the package). 
+     What version of the broker service are you running? (e.g. the version of RabbitMQ/Redis itself)
+-->
 
 
 ## What did you do?
 
-<!-- be descriptive, but succinct -->
+<!-- Be descriptive, but succinct.
+     Try to include a minimal reproducable example as a single python file.
+     Ideally your file can be used to start a worker,
+     and enqueues messages for the worker when run as a script.
+     e.g. https://github.com/Bogdanp/dramatiq/blob/master/examples/basic/example.py
+     If relevant, include the parameters you use to start Dramatiq.
+-->
 
 
 ## What did you expect would happen?
 
-<!-- be descriptive, but succinct -->
+<!-- Be descriptive, but succinct. -->
 
 
 ## What happened?
 
-<!-- be descriptive, but succinct -->
+<!-- Be descriptive, but succinct.
+     If an error or exception happend,
+     try to include as much of the error message and/or stack trace as possible.
+-->