add issue template (#126)

* add issue template

* add CODEOWNERS

.github/CODEOWNERS

@@ -0,0 +1,7 @@
+# The Origami Core team is the default owner of all Origami-supported repositories.
+# This file adds the owner as a reviewer for all pull requests made to this repository.
+# It references owners by source order - the last matching pattern takes the most precedence.
+
+# If you would like to be added as an owner, please get in touch with the Origami team at [email protected] or #ft-origami on Slack
+
+* @Financial-Times/origami-core

.github/ISSUE_TEMPLATE.md

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+---
+title: Issue: [type] [short description]
+---
+<!-- [type]: What is this issue for? A bug report? A feature request? -->
+
+<!--
+Please make sure you've checked that your issue hasn't already been raised within this repository.
+
+If you need help with submitting an issue, please get in touch with the Origami Team at [email protected] or #ft-origami on Slack.
+-->
+## What
+<!-- A clear description of what the problem or feature request is -->
+
+## Details
+<!--
+If it is a bug:
+- describe what the expected behaviour is, and what is actually happening
+- add steps on how to reproduce it
+- describe the environment you are having this problem in
+	- Browser + version (e.g. Chrome 70)
+	- Device (e.g. iPhone X, Desktop)
+	- provide screenshots to illustrate your problem
+
+If it is a feature request:
+	- explain what prompted this request — e.g. is it something that you regularly make a workaround for?
+	- describe what the new feature would do and how it would be used
+	- explain what alternatives you have explored / considered
+	- where possible, attach designs for the style of the new feature
+-->
+
+<!--
+## Additional information
+For either type of issue:
+	- please add any other comments or details you might have
+	- if you've had a conversation about this with someone, please reference that person in this issue
+	- if there is a similar or related issue, please link to it
+-->