Update issue templates

Author: AlexDaniel

.github/ISSUE_TEMPLATE/issue-template.md

@@ -0,0 +1,14 @@
+---
+name: Issue template
+about: Any template is better than none
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!--- Write a short description of the problem here. -->
+…
+
+<!--- Provide more details here. *Do not* propose a solution. You can propose a solution later in the comments. -->
+…