docs(chroma): Update Chroma Cloud connection example code (#693)

This PR updates the example code snippet for connecting to Chroma Cloud
within the official documentation.

Description of Changes:

The primary change is in the
docs/src/oss/javascript/integrations/vectorstores/chroma.mdx notebook,
where the example for instantiating a Chroma vector store for a Chroma
Cloud connection has been revised.

Reason for Change:

The previous example was not aligned with the latest implementation for
connecting to Chroma Cloud. This update ensures that the documentation
provides users with a correct and easy-to-follow example.

Co-authored-by: Mason Daugherty <[email protected]>

Author: Asaki-M

src/oss/javascript/integrations/vectorstores/chroma.mdx

@@ -123,9 +123,14 @@ import { Chroma } from "@langchain/community/vectorstores/chroma";
 
 const vectorStore = new Chroma(embeddings, {
   collectionName: "a-test-collection",
-  tenant: process.env.CHROMA_TENANT,
-  database: process.env.CHROMA_DATABASE,
-  chromaCloudAPIKey: process.env.CHROMA_API_KEY
+  chromaCloudAPIKey: process.env.CHROMA_API_KEY,
+  clientParams: {
+    host: "api.trychroma.com",
+    port: 8000,
+    ssl: true,
+    tenant: process.env.CHROMA_TENANT,
+    database: process.env.CHROMA_DATABASE,
+  },
 });
 ```