add issue template; fix #145 close #31

.gitlab/issue_templates/Default.md

@@ -0,0 +1,23 @@
+### pre-requisites
+
+<!--
+
+if you ignore the pre-requisites and the template the issue might be closed.
+suggestions are appreciated in the form of merge requests or alternatively well documented issues.
+
+make sure you are in the right repository:
+https://librewolf.net/docs/faq/#i-have-a-problem-where-do-i-open-a-new-issue
+
+-->
+
+- [ ] I've read and followed the [contribution guidelines](https://librewolf.net/docs/faq/#do-you-have-any-contribution-guidelines)
+- [ ] I've reproduced the issue in a new LibreWolf profile;
+- [ ] I've checked that the problem is not present in a stock Firefox profile;
+
+### details
+- browser version & OS:
+- steps to reprouce:
+- expected result:
+- actual result:
+- console errors and warnings:
+- others: