Add issue template (#2653)

.github/ISSUE_TEMPLATE/issue-report.md

@@ -0,0 +1,28 @@
+## The problem
+
+### 💻 Code demonstrating the problem
+
+<!-- Demonstrate the problem -->
+
+```
+js
+import { fn } from 'date-fns'
+
+fn()
+//=> Problematic output
+```
+
+### 🙁 Actual behavior
+
+<!-- Describe what you are getting -->
+
+### 🙂 Expected behavior
+
+<!-- Describe what you are expecting to get -->
+
+## Debug information
+
+- date-fns version: <!-- Fill in the date-fns version you use -->
+- Browser/Node.js version: <!-- Fill in the envrionment version (i.e. Chrome 94.0.4606.61) -->
+- Your timezone: <!-- Fill in your timezone name (i.e. Asia/Singapore) -->
+- Your current time: <!-- Fill in the time when did you tested the probmlem (i.e. 16:20) -->