docs[patch]: fix chroma distance function reference link (#6714)

examples/src/indexes/vector_stores/chroma/fromDocs.ts

@@ -12,7 +12,7 @@ const vectorStore = await Chroma.fromDocuments(docs, new OpenAIEmbeddings(), {
   url: "http://localhost:8000", // Optional, will default to this value
   collectionMetadata: {
     "hnsw:space": "cosine",
-  }, // Optional, can be used to specify the distance method of the embedding space https://docs.trychroma.com/usage-guide#changing-the-distance-function
+  }, // Optional, can be used to specify the distance method of the embedding space https://docs.trychroma.com/guides#changing-the-distance-function
 });
 
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