Update doc string

config.h

@@ -65,7 +65,7 @@
 #define CFG_RF_TO_IS          true    // forward packets from radio to internet
 #define CFG_IS_TO_RF          false   // forward packets from internet to radio basedon CFG_APRS_FILTER
 #define CFG_BEACON            false   // enable perdiodc beacon from CFG_APRS_RAW_BKN 
-#define CFG_TEXT_PACKETS      false   // enable aprs text packets instead of binary for interoperability with other projects (disables ax.25)
+#define CFG_TEXT_PACKETS      false   // enable aprs text packets instead of binary for interoperability with other projects (disables KISS+ax.25)
 
 // frequency correction for narrow band bandwidths
 #define CFG_FREQ_CORR         false   // true - correct own frequency based on received packet