Update issue templates

Author: mvantellingen

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,27 @@
+---
+name: Bug report
+about: Create a report to help us improve
+labels: 
+
+---
+
+Thanks for taking the time to report an issue!
+
+Please before continuing read http://docs.python-zeep.org/en/master/reporting_bugs.html
+
+Since Zeep is a module I've created and currently maintain in my spare
+time I need as much information as possible to quickly analyze/fix issues.
+
+Please provide the following information:
+
+1. The version of zeep (or if you are running master the commit hash/date)
+2. The WSDL you are using
+3. And most importantly, a [runnable example script](http://docs.python-zeep.org/en/master/reporting_bugs.html) which exposes the problem.
+
+Note that issues without a runnable example script are likely to be closed
+without further research. This is done to keep the number of issues 
+manageable and focus my time on actually fixing issues instead of analyzing
+the exact nature of the issue.
+
+Also please don't paste WSDL/XSD file contents directly into the issue since 
+that makes it hard to read. Please make it available somewhere public where your example script can retrieve it form (so not behind a company firewall)