Update layers and branch strategy doc#335

Merged

cbrake merged 3 commits intomasterfrom kraj/master

Apr 16, 2020

+14-9

Commits on Apr 15, 2020

doc: Improve layer-management.md to reflect current branching strategy
kraj
committed
Layer Updates: sources/meta-atmel sources/meta-raspberrypi sources/meta-webkit
kraj
committed

Commits on Apr 16, 2020

Layer Updates: sources/meta-freescale sources/meta-ti
kraj
committed