Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

+---
+name: Bug report
+about: Create a report to help us improve
+title: "[BUG]"
+labels: bug
+assignees: ''
+
+---
+
+## Description
+
+<!-- Provide a description of the bug you're experiencing. Be as detailed as possible the more information the better. -->
+
+## Repro steps
+
+<!-- Share the steps to reproduce the bug. A screenshot is worth a thousand words, provide one if you can. Also provide a backtrace or logcat if applicable. -->
+
+## Environment
+
+* SDK version: <!-- e.g R18.2, v5.2, R18.2-v5.2 -->
+* Operating System/Device: <!-- e.g. Windows, Linux, Android -->
+
+## Additional Info
+<!-- Add anything else that you think may be relevant in here -->