Fix config file name in README instructions

Change-Id: I45af4ff430c53e26657ef3ed659fe5c3fc3adc09
Rename logging.conf-sample to logging.conf.sample

Align with commit a4ed60fe, like other projects name it.

Change-Id: I4f73f0e2b1cc2a37d10903d8780ef71ce2b143ea
Merge "Fix config file name in README instructions"
Merge "Rename logging.conf-sample to logging.conf.sample"