Update README to introduce probe bundle
Update README to introduce probe bundle

Change-Id: I7f137a1acb0733e96967ff9b2ea04ae2f32c3e16

redhat-cip/skydive,safchain/skydive,skydive-project/skydive,redhat-cip/skydive,lebauce/skydive,safchain/skydive,lebauce/skydive,skydive-project/skydive,safchain/skydive,skydive-project/skydive,redhat-cip/skydive,lebauce/skydive,skydive-project/skydive,lebauce/skydive,safchain/skydive,skydive-project/skydive,lebauce/skydive,safchain/skydive,safchain/skydive,lebauce/skydive,safchain/skydive,skydive-project/skydive,skydive-project/skydive,lebauce/skydive,safchain/skydive,lebauce/skydive