add ISSUE_TEMPLATE.md

ISSUE_TEMPLATE.md

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+### Description
+
+[Description of the issue]
+
+### Steps to Reproduce
+
+_This is just a suggestion to create a perfect issue report. Delete blocks you do not know or do not want to post_
+
+1. [First Step]
+2. [Second Step]
+3. [and so on...]
+
+**Expected behavior:** [What you expect to happen]
+
+**Actual behavior:** [What actually happens]
+
+**Reproduces how often:** [What percentage of the time does it reproduce?]
+
+**Screenshot(s):** [Screenshot(s) or animated gifs of the error situtaion]
+
+**Error log(s):** From devTools console or shell terminal
+
+### Version(s)
+
+You can get this information from devTools (https://github.com/s-a/iron-node/blob/master/docs/VERSION-DETAILS.md).
+
+=====================  
+**Notes from ironNode maintainer:**
+You are welcome to add a feature or fix a bug via sending [pull request](CONTRIBUTING.md),
+it'll be incredibly faster than just opening a bug or feature request issue. :fireworks: Thanks!