Create user-story.md

Author: daniel-learns-with-coursera

.github/ISSUE_TEMPLATE/user-story.md

@@ -0,0 +1,11 @@
+**As a** [role]  
+**I need** [function]  
+**So that** [benefit]  
+      
+### Details and Assumptions
+    * [document what you know]      
+### Acceptance Criteria     
+    gherkin 
+    Given [some context]
+    When [certain action is taken]
+    Then [the outcome of action is observed]