Add bug-report template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,30 @@
+---
+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**
+Make sure that you have the latest version of `se2thesis` installed. Check its [CTAN](https://ctan.org/pkg/se2thesis) page and your installed version.
+
+Provide a **minimal working example** (see [meta.TeX.sx](https://tex.meta.stackexchange.com/q/228/14622) or [Nicola L. C. Talbot](http://mirrors.ctan.org/info/dickimaw/dickimaw-minexample.pdf)'s guide) that shows the error/issue.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Your TeX System**
+ - Distribution: [e.g. TeX Live 2024]
+ - Version of `se2thesis`:
+ - Probably other relevant packages/versions
+
+**Additional context**
+Add any other context about the problem here.