docs: Adds multiturn simulation howto guide (#786)

Co-authored-by: Tanushree <[email protected]>

Author: jacoblee93

docs/evaluation/concepts/index.mdx

@@ -245,9 +245,9 @@ It can also be more resource efficient to run tests and evaluations together if
 
 You can also choose to write evaluations using standard software testing tools like `pytest` or `vitest/jest` out of convenience.
 
-### Using `pytest` and `vitest/jest`
+### Using `pytest` and `Vitest/Jest`
 
-The LangSmith SDKs come with integrations for [pytest](./how_to_guides/pytest) and [`vitest/jest`](./how_to_guides/vitest_jest).
+The LangSmith SDKs come with integrations for [pytest](./how_to_guides/pytest) and [`Vitest/Jest`](./how_to_guides/vitest_jest).
 These make it easy to:
 - Track test results in LangSmith
 - Write evaluations as tests

docs/evaluation/how_to_guides/index.md

@@ -30,6 +30,7 @@ Evaluate and improve your application before deploying it.
 - [Run an evaluation from the UI](./how_to_guides/run_evaluation_from_prompt_playground)
 - [Run an evaluation via the REST API](./how_to_guides/run_evals_api_only)
 - [Run an evaluation with multimodal content](./how_to_guides/evaluate_with_attachments)
+- [Simulate multi-turn interactions](./how_to_guides/multi_turn_simulation)
 
 ### Define an evaluator