docs: fix numbers

packages/web/src/content/docs/providers.mdx

@@ -421,7 +421,7 @@ To use Google Vertex AI with OpenCode:
    You need to have a Google Cloud project with Vertex AI API enabled.
    :::
 
-1. Set the required environment variables:
+2. Set the required environment variables:
    - `GOOGLE_VERTEX_PROJECT`: Your Google Cloud project ID
    - `GOOGLE_VERTEX_REGION` (optional): The region for Vertex AI (defaults to `us-east5`)
    - Authentication (choose one):
@@ -442,7 +442,7 @@ To use Google Vertex AI with OpenCode:
    export GOOGLE_VERTEX_REGION=us-central1
    ```
 
-1. Run the `/models` command to select the model you want.
+3. Run the `/models` command to select the model you want.
 
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