Correcting typo in CHANGELOG

Author: alexanderjordanbaker

CHANGELOG.md

@@ -1,7 +1,7 @@
 # Changelog
 
 ## Version 3.1.0
-- Incoproate changes for Advanced Commerce API, Retention Messaging API 1.5 and App Store Server API v1.21 [https://github.com/apple/app-store-server-library-python/pull/188] [https://github.com/apple/app-store-server-library-python/pull/189] from @riyazpanjwani
+- Incorporate changes for Advanced Commerce API, Retention Messaging API 1.5 and App Store Server API v1.21 [https://github.com/apple/app-store-server-library-python/pull/188] [https://github.com/apple/app-store-server-library-python/pull/189] from @riyazpanjwani
 - Incorporate changes for App Store Server API v1.20 [https://github.com/apple/app-store-server-library-python/pull/191] from @riyazpanjwani
 - Incorporate changes for Retention Messaging API v1.3 and 1.4 [https://github.com/apple/app-store-server-library-python/pull/186]
 - Fix deliveryStatus not being included in consumption information [https://github.com/apple/app-store-server-library-python/pull/184] from @ohadbenita