Create ISSUE_TEMPLATE.md

Add issue template

Signed-off-by: Alex Ellis (VMware) <[email protected]>

Author: alexellis

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,27 @@
+<!--- Provide a general summary of the issue in the Title above -->
+
+## Proposed change
+<!--- If you're describing a bug, tell us what should happen -->
+<!--- If you're suggesting a change/improvement, tell us how it should work -->
+
+
+
+## Context
+<!--- How has this issue affected you? What are you trying to accomplish? -->
+<!--- Providing context helps us come up with a solution that is most useful in the real world -->
+
+
+
+## Your Environment
+<!--- Include as many relevant details about the environment you experienced the bug in -->
+* FaaS-CLI version ( Full output from: `faas-cli version` ):
+
+* Docker version `docker version` (e.g. Docker 17.0.05 ):
+
+* Are you using Docker Swarm or Kubernetes (FaaS-netes)?
+
+* Operating System and version (e.g. Linux, Windows, MacOS):
+
+* Link to your project or a code example to reproduce issue:
+
+* Please also follow the [troubleshooting guide](https://github.com/openfaas/faas/blob/master/guide/troubleshooting.md) and paste in any other diagnostic information you have: