fix(docs): typos in code snippet

docs/evaluation/how_to_guides/langchain_runnable.mdx

@@ -123,7 +123,7 @@ To evaluate our chain we can pass it directly to the `evaluate()` / `aevaluate()
       await evaluate(chain, {
         data: dataset.name,
         evaluators: [correct],
-        experimentPrefix: "gpt-4o, ba
+        experimentPrefix: "gpt-4o, baseline",
       });
     `,