Add CHANGELOG

CHANGELOG.md

@@ -0,0 +1,11 @@
+Cyc API Use Cases CHANGELOG
+===========================
+
+For more information, visit the [Cyc Developer Center](http://dev.cyc.com/).
+
+1.0.0-rc1 - 2015-03-06
+----------------------
+Examples are designed to work against 
+[Cyc Core API Suite 1.0.0-rc1](https://github.com/cycorp/CycCoreAPI/releases/tag/v1.0.0-rc1) and a 
+[suitable version of EnterpriseCyc or ResearchCyc](https://github.com/cycorp/CoreAPIUseCases/blob/v1.0.0-rc1/README.md#requirements).
+Note that 1.0.0-rc1 is _not backwards-compatible_ with earlier releases.