Create bug_report.md

Author: amyschoen

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,27 @@
+---
+name: Bug Report
+about: Is something not working as expected? Please help us improve!
+title: ''
+labels: 'bug'
+---
+
+## Bug Report
+
+**Current behavior**
+A clear and concise description of what the bug is (with screenshots).
+
+**Reproduction**
+Steps to reproduce the behavior in the course:
+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.
+
+**Possible solution**
+If you have suggestions, we'd love to hear them. If not, that's ok too.
+
+**Additional context**
+Add any other context about the problem here. If applicable, add screenshots to help explain.