Update issue templates

Author: francawinter

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,18 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Expected behavior**
+
+**Actual behavior**
+
+**Your environment**
+version, browser, and operating system
+
+**Steps to reproduce the problem**
+Ideally, provide a minimally reproducible example