Document the Karaf feature repos params in README
Document the Karaf feature repos params in README

Relevant to #14 and #15

Change-Id: I7cce3a7066053bd9a8891b384145e26c35d7d7c6
Signed-off-by: Daniel Farrell <65eaad88897e615d9128b5e890b98414aac720cc@redhat.com>

googoolet/publlc