Merge pull request #26 from eileenmcnaughton/patch-4

Let's stop advertising 5.6 since we might break it  at any moment

README.md

@@ -21,7 +21,7 @@ if you already have a basic understanding of CiviCRM API and AngularJS.  It is l
 
 ## Requirements
 
-* PHP v5.6+
+* PHP v7.0+
 * CiviCRM v5.7+
 
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