Add resourcePath to running dm on Android doc.

site/user/quick/android.md

 Android
 =======
 
 Prerequisites
 -------------
 
 _Currently we only support building Skia for Android on a Linux or Mac host!_
 
 The following libraries/utilities are required in addition to those needed for a standard skia checkout:
 
@@ skipping 84 matching lines @@
 a launcher executable on your device.  To assist in this process there is a
 script called `android_run_skia` that is located in the
 `platform_tools/android/bin` directory.
 
 Run correctness tests
 ---------------------
 
 First build the app and then run it on an attached device:
 
     ./platform_tools/android/bin/android_ninja [-d device_id] dm
-    ./platform_tools/android/bin/android_run_skia dm # uploads and runs the dm binary on the attached device
+
+    # uploads dm binary and resources and runs dm on the attached device
+    ./platform_tools/android/bin/android_run_skia dm --resourcePath /data/local/tmp/skia/resources/
 
 Run performance tests
 ---------------------
 
 Since nanobench tests performance, it usually makes more sense to run it in
 Release mode.
 
     BUILDTYPE=Release ./platform_tools/android/bin/android_ninja [-d device_id] nanobench
 
     # uploads and runs the nanobench binary on the attached device
@@ skipping 42 matching lines @@
 GDB client shell on the host. Necessary symbol files are pulled from the
 device and placed into a temporary folder. The script does not build the app -
 you'll have to do that first.
 
     # you can include additional arguments in quotes (e.g. "dm --nopdf")
     ./platform_tools/android/bin/android_gdb_exe dm
 
 When the gdb client is ready, insert a breakpoint, and continue to let the
 program resume execution.