Merge \"Merge \\\\\"docs: Edited \\\\\"Promote with Ads\\\\\" page; created...

Merge \"Merge \\\\\"docs: Edited \\\\\"Promote with Ads\\\\\" page; created \\\\\"Nearby\\\\\" feature page.\\\\\" into mnc-io-docs am: 31302819 am: 5301f688 am: 557b747f am: a6668287\" into nyc-mr1-dev-plus-aosp
am: 8c41799b

Change-Id: I793e33f9ebe499c869a98a0212d4b26fbca7e750