Update README.md

Explain how to create models for a certain language

README.md

@@ -36,3 +36,18 @@ pipeline_tag: automatic-speech-recognition
         )
         return {"sequences": outputs["sequences"]}
 
+
+
+
+In order to force transcription for a certain language set the 1. decoder id as shown below:
+
+    def transcribe(self, input_features):
+        outputs = self.model.generate(
+            input_features,
+            max_new_tokens=450,  # change as needed
+            return_dict_in_generate=True,
+            forced_decoder_ids=[[1, 50261], [2, 50359], [3, 50363]],  # forced to transcribe (50359) German (50261) with no timestamps (50363)
+        )
+        return {"sequences": outputs["sequences"]}
+
+(language codes from here: https://github.com/woheller69/whisperIME/blob/master/app/src/main/java/com/whispertflite/utils/InputLang.java)