Add bug report issue template (#1693)

* Add bug report issue template

* Update .github/ISSUE_TEMPLATE/bug_report.md

Co-Authored-By: jackgerrits <jackgerrits@users.noreply.github.com>

* Update .github/ISSUE_TEMPLATE/bug_report.md

Co-Authored-By: jackgerrits <jackgerrits@users.noreply.github.com>

* Update .github/ISSUE_TEMPLATE/bug_report.md

Co-Authored-By: jackgerrits <jackgerrits@users.noreply.github.com>

* Update bug_report.md

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Report a bug in VW
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+#### Describe the bug
+A clear and concise description of what the bug is.
+
+#### To Reproduce
+Steps to reproduce the behavior:
+1. Used this specific command line i.e. `vw -k -d train-sets/0001.dat --progress 10`
+2. Used `model_file`
+3. Used `specific_data_set`
+
+#### Expected behavior
+A clear and concise description of what you expected to happen.
+
+#### Observed Behavior
+How did VW behave? Please include any stack trace, log messages or crash logs.
+
+#### Environment
+What version of VW did you use?
+What OS or language did you use?
+
+e.g. `VW 8.6.1 on Linux with the Python bindings`
+
+#### Additional context
+Add any other context about the problem here.