Bug 575273 - Update whats new in help files to 4.21 M2 content Change-Id: Id3c333e691f0379d7f064512519dddb774879fc6 Signed-off-by: Sravan Kumar Lakkimsetti <sravankumarl@in.ibm.com> Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.common/+/183754 Reviewed-by: Kalyan Prasad Tatavarthi <kalyan_prasad@in.ibm.com> Tested-by: Kalyan Prasad Tatavarthi <kalyan_prasad@in.ibm.com>