Update app.py

app.py

@@ -19,7 +19,7 @@ from transformers import (
 #Coqui V1 api render voice, you can also use XTTS
 #COQUI_URL="https://app.coqui.ai/api/v2/samples"
 COQUI_URL="https://app.coqui.ai/api/v2/samples/multilingual/render/"
-COQUI_URL_EN=="https://app.coqui.ai/api/v2/samples/xtts/render/"
+COQUI_URL_EN="https://app.coqui.ai/api/v2/samples/xtts/render/"
 ### Warning each sample will consume your credits
 COQUI_TOKEN=os.environ.get("COQUI_TOKEN")