Updated readme.

Author: chsw

README.md

@@ -1,4 +1,18 @@
 MavLink_FrSkySPort
 ==================
-Copy from source found at
-http://diydrones.com/forum/topics/amp-to-frsky-x8r-sport-converter
+This is a modified version of the mavlink to frsky s.port code found here:
+http://diydrones.com/forum/topics/amp-to-frsky-x8r-sport-converter
+
+It's based on the official 1.3 version.
+
+Changes:
+
+- Acc X/Y/Z reports the average vibrations (difference between max/min) instead of actual accelerometer values.
+- Reports gps-speed instead of hud-speed.
+- Change how the code responds to tx telemetry requests. This fixes the missing cell/cells in the latest open-tx versions.
+- Updated the cell detection to minimize the risk of detecting to many cells (unless the battery is low upon connection)
+  and changing the cell count inflight when the battery voltage drops.
+- Changed the averaging for voltage/current to be more accurate to the voltage/current fluctuations. Hoping of increasing the 
+  accurasy of the mAh-counter. Use FAS as both voltage/current source.
+- Delays sending the voltage/current until the voltage reading through mavlink has stabilized. This should minimize the false 
+  low battery-warnings upon model powerup.