added better build instructions and set proper project name

README.md

@@ -8,9 +8,16 @@ Install the Android SDK and Android NDK and run
 
     ndk-build
 
+and after that
+
+    ant debug
+
 in the root folder of this project or load the project using Eclipse and
 compile/run it using Eclipse.
 
+This should give you a .apk file in the bin/ subdirectory that you can then
+install on your phone.
+
 License:
 --------
 

build.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This should be changed to the name of your project -->
-<project name="SDLActivity" default="help">
+<project name="love_android_sdl2" default="help">
 
     <!-- The local.properties file is created and updated by the 'android' tool.
          It contains the path to the SDK. It should *NOT* be checked into