Create ISSUE_TEMPLATE.md

Author: IBMRob

.github/ISSUE_TEMPLATE.md

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+#### Issue description
+
+<!-- Please only raise issues specific to the code in this repo -->
+<!-- For general ACE issues please use https://community.ibm.com/community/user/integration/communities/community-home/digestviewer?communitykey=77544459-9fda-40da-ae0b-fc8c76f0ce18 -->
+
+
+#### Steps to reproduce the issue
+
+1.  
+2. 
+3. 
+
+
+#### What's the expected result?
+
+-
+
+
+#### What's the actual result?
+
+-
+
+
+#### Additional details / screenshot
+
+- ![Screenshot]()
+-