fixed reference to IS fine-tuned model

app.py

@@ -25,7 +25,7 @@ MODEL_MAP = {
     "fr": "Helsinki-NLP/opus-mt-en-fr",
     "hr": "facebook/mbart-large-50-many-to-many-mmt",
     "hu": "Helsinki-NLP/opus-mt-tc-big-en-hu",
-    "is": "mkorada/opus-mt-en-is-finetuned-v4 ", #Manas's fine-tuned model
+    "is": "mkorada/opus-mt-en-is-finetuned-v4", #Manas's fine-tuned model
     "it": "Helsinki-NLP/opus-mt-tc-big-en-it",
     "lb": "alirezamsh/small100",
     "lt": "Helsinki-NLP/opus-mt-tc-big-en-lt",