Update README.md

Author: rajat08

README.md

@@ -72,8 +72,9 @@ import pinecone
 
 pinecone.init(api_key="YOUR_API_KEY", environment="us-west1-gcp")
 
-index_description = pinecone.describe_index("example-index"
-```)
+index_description = pinecone.describe_index("example-index")
+
+```
 
 ## Delete an index