Change default model type to match the documentation (#254)

android/SherpaNcnn/app/src/main/java/com/k2fsa/sherpa/ncnn/MainActivity.kt

@@ -182,7 +182,7 @@ class MainActivity : AppCompatActivity() {
             featureDim = 80
         )
         //Please change the argument "type" if you use a different model
-        val modelConfig = getModelConfig(type = 2, useGPU = useGPU)!!
+        val modelConfig = getModelConfig(type = 1, useGPU = useGPU)!!
         val decoderConfig = getDecoderConfig(method = "greedy_search", numActivePaths = 4)
 
         val config = RecognizerConfig(