Update API key env var

app.py

@@ -9,9 +9,10 @@ from tqdm import tqdm
 from sentence_transformers.cross_encoder import CrossEncoder
 import numpy as np
 from torch import nn
+import os
 
 # Set up semantic search
-PINECONE_API_KEY = $PINECONE_API_KEY
+PINECONE_API_KEY = os.environ.get('PINECONE_API_KEY')
 
 def get_embedding(text):
   embed_text = sentencetransformer_model.encode(text)