docs: Added the new H2 "Determine if your App is Connected" to TOC and fixed some typos.
docs: Added the new H2 "Determine if your App is Connected" to TOC and fixed some typos.

Bug:26510527
Change-Id: I2991473705bd29adf107d3d9b161e56ff2383867

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