Update advanced_retrieval.md - fix link for reranking example notebook (#13153)

docs/docs/optimizing/advanced_retrieval/advanced_retrieval.md

@@ -4,7 +4,7 @@
 
 There are a variety of more advanced retrieval strategies you may wish to try, each with different benefits:
 
-- {ref}`Reranking <cohere_rerank>`
+- [Reranking](../../examples/node_postprocessor/CohereRerank.ipynb)
 - [Recursive retrieval](../../examples/query_engine/pdf_tables/recursive_retriever.ipynb)
 - [Embedded tables](../../examples/query_engine/sec_tables/tesla_10q_table.ipynb)
 - [Small-to-big retrieval](../../examples/node_postprocessor/MetadataReplacementDemo.ipynb)