Added Invoke permissions in the tutorial
Added Invoke permissions in the tutorial

The Cognito Identity Pool role setup was missing the permissions to
Invoke API Gateway deployed APIs

4ossiblellc/api-gateway-secure-pet-store,mattmcclean/api-gateway-secure-pet-store,mattmcclean/api-gateway-secure-pet-store,awslabs/api-gateway-secure-pet-store,mattmcclean/api-gateway-secure-pet-store,awslabs/api-gateway-secure-pet-store,4ossiblellc/api-gateway-secure-pet-store,mattmcclean/api-gateway-secure-pet-store