Add GoDoc

Author: Jonah Back

receiver/opencensusreceiver/config.go

@@ -32,6 +32,7 @@ type Config struct {
 	// TLSCredentials is a (cert_file, key_file) configuration.
 	TLSCredentials *tlsCredentials `mapstructure:"tls-credentials,omitempty"`
 
+	// CorsOrigins is the allowed list of origins for HTTP/JSON based trace data.
 	CorsOrigins []string `mapstructure:"cors-allowed-origins"`
 
 	// Keepalive anchor for all the settings related to keepalive.