Add bug template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,28 @@
+---
+name: Bug report
+about: Create a report to help us improve
+labels:
+
+---
+
+**System Information**
+
+* Distribution package:
+* Peek version:
+* GTK:
+* Additional info if applicable:
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior, for example:
+1. Start peek
+2. Record the screen for 5 seconds
+3. You should see the error: `(peek:5661): WARNING **`
+
+**Expected behavior**
+A clear and concise description of what you expected to happen, if relevant to the bug.
+
+**Additional context**
+Add any other context or screenshots about the bug being reported.