diff --git a/source/include/core_mqtt_config_defaults.h b/source/include/core_mqtt_config_defaults.h
index 5b6a391..821f8ac 100644
--- a/source/include/core_mqtt_config_defaults.h
+++ b/source/include/core_mqtt_config_defaults.h
@@ -98,9 +98,10 @@
  * application-specific logging implementation that supports error logging.
  *
  * @note This logging macro is called in the MQTT library with parameters wrapped in
- * double parentheses to be ISO C89/C90 standard compliant. For an example
- * implementation of the logging macros, refer to mqtt_config.h files in the MQTT
- * demo folder and the reference implementation of the logging-stack in demos.
+ * double parentheses to be ISO C89/C90 standard compliant. For a reference
+ * POSIX implementation of the logging macros, refer to core_mqtt_config.h files, and the
+ * logging-stack in demos folder of the
+ * [AWS IoT Embedded C SDK repository](https://github.com/aws/aws-iot-device-sdk-embedded-C/tree/master).
  *
  * <b>Default value</b>: Error logging is turned off, and no code is generated for calls
  * to the macro in the MQTT library on compilation.
@@ -117,9 +118,10 @@
  * application-specific logging implementation that supports warning logging.
  *
  * @note This logging macro is called in the MQTT library with parameters wrapped in
- * double parentheses to be ISO C89/C90 standard compliant. For an example
- * implementation of the logging macros, refer to mqtt_config.h files in the MQTT
- * demo folder and the reference implementation of the logging-stack in demos.
+ * double parentheses to be ISO C89/C90 standard compliant. For a reference
+ * POSIX implementation of the logging macros, refer to core_mqtt_config.h files, and the
+ * logging-stack in demos folder of the
+ * [AWS IoT Embedded C SDK repository](https://github.com/aws/aws-iot-device-sdk-embedded-C/tree/master).
  *
  * <b>Default value</b>: Warning logs are turned off, and no code is generated for calls
  * to the macro in the MQTT library on compilation.
@@ -136,9 +138,10 @@
  * application-specific logging implementation that supports info logging.
  *
  * @note This logging macro is called in the MQTT library with parameters wrapped in
- * double parentheses to be ISO C89/C90 standard compliant. For an example
- * implementation of the logging macros, refer to mqtt_config.h files in the MQTT
- * demo folder and the reference implementation of the logging-stack in demos.
+ * double parentheses to be ISO C89/C90 standard compliant. For a reference
+ * POSIX implementation of the logging macros, refer to core_mqtt_config.h files, and the
+ * logging-stack in demos folder of the
+ * [AWS IoT Embedded C SDK repository](https://github.com/aws/aws-iot-device-sdk-embedded-C/tree/master).
  *
  * <b>Default value</b>: Info logging is turned off, and no code is generated for calls
  * to the macro in the MQTT library on compilation.
@@ -155,9 +158,10 @@
  * application-specific logging implementation that supports debug logging.
  *
  * @note This logging macro is called in the MQTT library with parameters wrapped in
- * double parentheses to be ISO C89/C90 standard compliant. For an example
- * implementation of the logging macros, refer to mqtt_config.h files in the MQTT
- * demo folder and the reference implementation of the logging-stack in demos.
+ * double parentheses to be ISO C89/C90 standard compliant. For a reference
+ * POSIX implementation of the logging macros, refer to core_mqtt_config.h files, and the
+ * logging-stack in demos folder of the
+ * [AWS IoT Embedded C SDK repository](https://github.com/aws/aws-iot-device-sdk-embedded-C/tree/master).
  *
  * <b>Default value</b>: Debug logging is turned off, and no code is generated for calls
  * to the macro in the MQTT library on compilation.
diff --git a/source/lexicon.txt b/source/lexicon.txt
index fe4187c..eb5065f 100644
--- a/source/lexicon.txt
+++ b/source/lexicon.txt
@@ -6,6 +6,7 @@ addtogroup
 api
 apis
 app
+aws
 bool
 br
 bytesreceived
@@ -65,8 +66,10 @@ gettime
 gettimefunction
 gettimestampms
 getunsubscribepacketsize
+github
 headersize
 http
+https
 ifndef
 inc
 incomingpacket
@@ -76,6 +79,7 @@ initializeconnectinfo
 initializesubscribeinfo
 initializewillinfo
 int
+iot
 isn
 iso
 keepaliveintervalsec
@@ -185,6 +189,7 @@ pnetworkbuffer
 pnetworkcontext
 pnetworkinterface
 pnewstate
+posix
 ppacketid
 ppacketidentifier
 ppacketinfo
@@ -245,6 +250,7 @@ remainingtimems
 resending
 reservestate
 responsecode
+sdk
 searchstates
 serializeack
 serializeconnect