readme: fix max_length parameter in text generation pipeline

README.md

@@ -29,9 +29,9 @@ We also open source this fine-tuned model. Text can be generated with:
 from transformers import pipeline
 
 pipe = pipeline('text-generation', model="dbmdz/german-gpt2-faust",
-                 tokenizer="dbmdz/german-gpt2-faust", config={'max_length':800})   
+                 tokenizer="dbmdz/german-gpt2-faust")   
 
-text = pipe2("Schon um die Liebe")[0]["generated_text"]
+text = pipe2("Schon um die Liebe", max_length=100)[0]["generated_text"]
 
 print(text)
 ```