docs: fix supported models link in Vertex AI example (#1144)

<!-- Explain the changes introduced in your PR -->

## Pull Request approval

You will need to get your PR approved by at least one member of the
Sourcegraph team. For reviews of docs formatting, styles, and component
usage, please tag the docs team via the #docs Slack channel.

Author: enriquegh

docs/cody/enterprise/completions-configuration.mdx

@@ -148,7 +148,7 @@ See also [Debugging: running a latency test](#debugging-running-a-latency-test).
 
 On [GCP Vertex](https://cloud.google.com/vertex-ai/generative-ai/docs/partner-models/use-claude), we only support Anthropic Claude models.
 
-- Enable the [Vertex AI API](https://console.cloud.google.com/marketplace/product/google/aiplatform.googleapis.com) in the GCP console. Once Vertex has been enabled in your project, navigate to the [Vertex Model Garden](https://console.cloud.google.com/vertex-ai/model-garden) to select and enable the Anthropic Claude model(s) that you wish to use with Cody. See [Supported LLM Models](/capabilities/supported-models) for an up-to-date list of Anthropic Claude models supported by Cody.
+- Enable the [Vertex AI API](https://console.cloud.google.com/marketplace/product/google/aiplatform.googleapis.com) in the GCP console. Once Vertex has been enabled in your project, navigate to the [Vertex Model Garden](https://console.cloud.google.com/vertex-ai/model-garden) to select and enable the Anthropic Claude model(s) that you wish to use with Cody. See [Supported LLM Models](/cody/capabilities/supported-models) for an up-to-date list of Anthropic Claude models supported by Cody.
 
 <Callout type="note">It may take some time to enable Vertex and provision access to the models you plan to use</Callout>