Update Release Notes

Author: jetsonhacks

README.md

@@ -19,7 +19,7 @@ $ gst-launch-1.0 nvarguscamerasrc sensor_id=0 ! nvoverlaysink
 
 # More specific - width, height and framerate are from supported video modes
 # Example also shows sensor_mode parameter to nvarguscamerasrc
-# See table below for example video modes of example sensor; Displays 1/4 size of video frame
+# See table below for example video modes of example sensor
 $ gst-launch-1.0 nvarguscamerasrc sensor_id=0 ! \
    'video/x-raw(memory:NVMM),width=3280, height=2464, framerate=21/1, format=NV12' ! \
    nvvidconv flip-method=0 ! 'video/x-raw,width=960, height=720' ! \
@@ -128,6 +128,11 @@ If you can open the camera in GStreamer from the command line, and have issues o
 
 <h2>Release Notes</h2>
 
+v2.1 Release March, 2020
+* L4T 32.3.1 (JetPack 4.3)
+* OpenCV 4.1.1
+* Tested on Jetson Nano B01
+
 v2.0 Release September, 2019
 * L4T 32.2.1 (JetPack 4.2.2)
 * OpenCV 3.3.1