Update README.md

tensorflow/examples/android/README.md

@@ -57,12 +57,12 @@ built:
 ```bash
 $ adb install -r -g bazel-bin/tensorflow/examples/android/tensorflow_demo.apk
 ```
+
 Some older versions of adb might complain about the -g option (returning: "Error: Unknown option: -g").
 In this case, if your device runs Android 6.0 or later, then make sure you update to
 the latest adb version before trying the install command again. If your device runs earlier
 versions of Android, however, you can issue the install command without the -g option.
 
-
 Alternatively, a streamlined means of building, installing and running in one
 command is: