Add instructions for creating local.properties

Author: xrmx

README.md

@@ -26,7 +26,7 @@ Type `ant jar` at the root of the Library Project to produce a Jar file.
 
 The library jar along with it's javadoc jar will be found in the `dist` directory inside the library project.
 
-You will need to provide your own `local.properties` inside the library project.
+You will need to provide your own `local.properties` inside the library project, from there run `android update project -p .`
 
 ## Using the Library
 In the `onLeScan()` method of your `BluetoothAdapter.LeScanCallback()` create a new BluetoothLeDevice with the given information.
@@ -153,4 +153,4 @@ All logos are the property of their respective owners.
 
 The code in this project is licensed under the Apache Software License 2.0.
 
-Copyright (c) 2014 Alexandros Schillings.
+Copyright (c) 2014 Alexandros Schillings.