Update wiki Home page for google-vertexai-sink

Home.md

@@ -1,21 +1,33 @@
-# Deploy the Project on CamelX Platform
+# Google Vertex AI Sink
 
-Deploy on CamelX Platform in three steps
+Send data to Google Vertex AI for generating content with generative AI models.
 
-## Step 1: Create a release
-From the project space, click on **"Create a release"**
+## Metadata
 
-The new version is automatically available in the list
+| Property | Value |
+|----------|-------|
+| Type | sink |
+| Group | Google Vertex AI |
+| Namespace | GCP |
+| Support Level | Preview |
+| Provider | Apache Software Foundation |
 
-## Step 2: Deploy
-Click on **"Deploy"**
+## Properties
 
-- **Version:** Select the desired release
-- **Environment:** Choose `Development`, `Staging`, or `Production` 
-- **Configuration:** Select the configuration source
-- **Resources:** Set CPU and Memory
+| Name | Type | Required | Default | Description |
+|------|------|----------|---------|-------------|
+| `projectId` | string | ✓ |  | The Google Cloud Project ID. |
+| `location` | string | ✓ |  | The Google Cloud region (e.g., us-central1). |
+| `modelId` | string | ✓ |  | The Model ID to use for predictions (e.g., gemini-2.5-pro). |
+| `serviceAccountKey` | binary |  |  | The service account key to use as credentials for the Vertex AI client. You must encode this value in base64. |
+| `operation` | string |  | `generateText` | The operation to perform. |
+| `temperature` | string |  |  | Controls randomness in generation. Lower values make output more deterministic. Range 0.0 to 1.0. |
+| `maxOutputTokens` | string |  |  | Maximum number of tokens to generate in the response. |
+| `topP` | string |  |  | Nucleus sampling parameter. Considers tokens with top_p probability mass. Range 0.0 to 1.0. |
+| `topK` | string |  |  | Only sample from the top K options for each subsequent token. |
 
-## Step 3: Expose
-Enable **"Expose"**
+## Dependencies
 
-Choose an **API Gateway** (Internal, Public, etc.)
+- `camel:core`
+- `camel:kamelet`
+- `camel:google-vertexai`