Update issue templates

Author: Timothy Johnson

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,29 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Environment**
+ - Browser with version [e.g. chrome 22, firefox 70.0.1]
+- Devtools version [e.g. 1.3.1, built from master]
+- Svelte version [e.g. 3.15.0]
+
+**Additional context**
+Add any other context about the problem here.