docs: Add Issue Template

Author: PLNech

ISSUE_TEMPLATE.md

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+<!--
+  ***************************
+  Thanks for participating in this project!
+
+  This form is to report issues or new features.
+  As for general questions like "How to hide results when the query is empty?",
+  please search or post a question to our discourse forum: https://discourse.algolia.com/.
+
+  In any case,
+    - make sure you are using the latest version of the library;
+    - do at least one search in current issues or questions, your question might already be answered;
+    - do include details, screenshots when it's a visual issue, LogCat errors or stack trace otherwise;
+  ***************************
+-->
+
+**Do you want to request a *feature* or report a *bug*?**
+
+<!--
+  ***************************
+  If the current behavior is a bug, please provide all the steps to reproduce and a minimal
+  code example or a repository on GitHub that we can test using gradle.
+
+  If you are requesting a new feature, we need to understand WHY would you
+  need this feature (your use case) or how you are limited with the current API.
+  ***************************
+-->
+
+**Bug: What is the current behavior?**
+
+**Bug: What is the expected behavior?**
+
+**Bug: What browsers are impacted? Which versions?**
+
+**Bug: What is the proposed solution?**
+
+**Feature: What is your use case for such a feature?**
+
+**Feature: What is your proposed API entry? The new option to add? What is the behavior?**
+
+**What is the version you are using? Always try to use the latest one before opening a bug issue.**
+
+<!-- Delete any HTML comment and non relevant questions -->
+