docs: discovered an orphaned article; added to side nav
docs: discovered an orphaned article; added to side nav

Change-Id: Ib22f77e61d17542ac9a871df06e8173ed1933426

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base