Update README.md documentation
Update README.md documentation

Change-Id: I2ee6c1d0ba6cfdb2e6dfed502bf16355b993c27c
Signed-off-by: George Keishing <bef0a9ecac45fb57611777c8270153994e13fd2e@in.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation