Update ChangeLog.md

Author: cormacpayne

src/ServiceFabric/ServiceFabric/ChangeLog.md

@@ -18,6 +18,7 @@
         - Additional information about change #1
 -->
 ## Upcoming Release
+* Fix typo in error message for `Update-AzServiceFabricReliability`
 
 ## Version 1.0.1
 * Rollback when a certificate is added to VMSS model but an exception is thrown this is to fix bug: https://github.com/Azure/service-fabric-issues/issues/932