Update app.py, add credentials

app.py

@@ -4,6 +4,9 @@ import time
 import openai
 import numpy as np
 
+openai.organization = os.environ.get('ORGANIZATION')
+openai.api_key = os.environ.get('API_KEY')
+
 def calculate_embeddings_with_gpt3(text, engine="text-similarity-davinci-001", interval = 1.5, verbose=True):
   if verbose:
     print(f'Calculating embedding for {text}...')