Update CHANGELOG.md

Author: PaulZC

CHANGELOG.md

@@ -5,8 +5,10 @@ v1.11
 ---------
 
 * Adds support for the ICM-20948 Digital Motion Processor [47](https://github.com/sparkfun/OpenLog_Artemis/issues/47)
-  * The OLA's orientation can be logged as a 6-axis or 9-axis Quaternion
+  * The OLA's orientation can be logged as a 6-axis or 9-axis Quaternion. Note: only Quat9 provides absolute orientation - using the magnetometer. Quat6 uses the accel and gyro only
+  * Open Menu 3 and select option 12 to enable the DMP
 * Adds support for exFAT microSD cards [34](https://github.com/sparkfun/OpenLog_Artemis/issues/34)
+  * Based on v2.0.6 of Bill Greiman's SdFat library
 * Adds a minimum awake time, making it easier to open the Serial menu when the OLA is sleeping between measurements [83](https://github.com/sparkfun/OpenLog_Artemis/issues/83)
 * Adds support for the Bio Sensor Hub Pulse Oximeter and Heart Rate Sensor [81](https://github.com/sparkfun/OpenLog_Artemis/issues/81)
   * Requires exclusive use of pins 32 and 11