update readme

Author: jaehyeon-kim

README.md

@@ -7,6 +7,7 @@ Official Helm Charts for Factor House products. Currently supported:
 
 * [Kpow](charts/kpow/README.md) (`factorhouse/kpow`)
 * [Kpow Community Edition](charts/kpow-ce/README.md) (`factorhouse/kpow-ce`)
+* [Kpow AWS Marketplace (Kpow Annual)](charts/kpow-annual/README.md)(`factorhouse/kpow-annual-chart`)
 * [Flex](charts/flex/README.md) (`factorhouse/flex`)
 * [Flex Community Edition](charts/flex-ce/README.md) (`factorhouse/flex-ce`)