Update index.mdx

indentation

Author: Luke31

docs/platforms/python/integrations/langchain/index.mdx

@@ -81,10 +81,10 @@ import sentry_sdk
 sentry_sdk.init(...)  # same as above
 
 llm = ChatOpenAI(model="gpt-3.5-turbo-0125", temperature=0, api_key="bad API key")
-  with sentry_sdk.start_transaction(op="ai-inference", name="The result of the AI inference"):
-    chain = (llm | StrOutputParser()).with_config({"run_name": "test-run"})
-    response = chain.invoke([("system", "What is the capital of France?")])
-    print(response)
+    with sentry_sdk.start_transaction(op="ai-inference", name="The result of the AI inference"):
+        chain = (llm | StrOutputParser()).with_config({"run_name": "test-run"})
+        response = chain.invoke([("system", "What is the capital of France?")])
+        print(response)
 ```
 
 After running this script, a transaction will be created in the Performance section of [sentry.io](https://sentry.io). Additionally, an error event (about the bad API key) will be sent to [sentry.io](https://sentry.io) and will be connected to the transaction.