Update README.md

to build tess-two ubuntu 13.10
    git clone git://github.com/rmtheis/tess-two tess
    
    1, import project tess-two into Eclipse using File->Import->Existing Projects.
    2, target to android4.3, and check it from build path
    3, change AndroidManifest.xml file. add android:targetSdkVersion="18" to <uses-sdk android:minSdkVersion="8" />, so the line would be like <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="18" />
    3, then run under tess-two in Eclipse workspace:
        ndk-build
    4, run it or test it