symlink README.md to topdir
symlink README.md to topdir

Change-Id: Iee4ea3b4dde9d986461438d2df93179868603ebf
Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

96boards/oe-rpb-manifest,koenkooi/angstrom-manifest,twoerner/angstrom-manifest,Angstrom-distribution/angstrom-manifest,ndechesne/qcom-oe-manifest,linaro-home/lhg-oe-manifests