Update app.py

app.py

@@ -23,7 +23,7 @@ def chunks_of_900(text, chunk_size=900):
     current_chunk = ""
     for sentence in sentences:
         if len(current_chunk + sentence) <= chunk_size:
-            current_chunk += sentence
+            current_chunk += " " + sentence
         else:
             chunks.append(current_chunk)
             current_chunk = sentence