Update issue templates

Author: taboulot

.github/ISSUE_TEMPLATE/🐛-bug-report.md

@@ -0,0 +1,37 @@
+---
+name: "\U0001F41B 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
+
+**Observed behavior**
+A clear and concise description of what you observed.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Platform concerned:**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+
+**Additional context**
+Add any other context about the problem here.
+
+**Link to reproducible example**
+https://.....