Encourage good issues with issue templates [#12]

I've never used github's new multiple-option issue templates before!
I'm excited to see them in action :)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,17 @@
+---
+name: Bug report
+about: Unexpected or broken behavior
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**What I tried to do:**
+<!-- e.g. run a helm installation -->
+
+**What happened:**
+<!-- describe the faulty behavior -->
+
+**More info:**
+<!-- contents of .drone.yml, etc. -->