Add GH issue template and update readme

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,24 @@
+<!-- For general questions about how to use Locust, use either the Slack link provided in the Readme or [ask a question on Stack Overflow](https://stackoverflow.com/questions/ask) tagged Locust.-->
+
+
+### Description of issue / feature request
+
+TBD
+
+### Expected behavior
+
+TBD
+
+### Actual behavior
+
+TBD
+
+### Environment settings (for bug reports)
+
+- OS:
+- Python version:
+- Locust version:
+
+### Steps to reproduce (for bug reports)
+
+TBD - [example code appreciated](https://stackoverflow.com/help/mcve)

README.md

@@ -47,6 +47,13 @@ of callbacks, your code looks and behaves like normal, blocking Python code.
 
 More info and documentation can be found at: <a href="http://docs.locust.io/">http://docs.locust.io/</a>
 
+## Questions/help?
+
+For questions about how to use Locust, feel free to stop by the Slack or ask questions on Stack Overflow tagged Locust.
+
+## Bug reporting or feature requests
+
+Open a Github issue and follow the template listed there.
 
 ## Authors