docs: Update tutorials/index.md to make tables for Tutorials (#1065)

# Description

Closes #1064

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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Holt Skinner <[email protected]>

Author: 3 people

.github/actions/spelling/allow.txt

@@ -206,6 +206,7 @@ iat
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docs/tutorials/index.md

@@ -2,20 +2,30 @@
 
 ## Python
 
-- Follow the [A2A Python Quickstart Tutorial](./python/1-introduction.md)
-- For additional Python samples, see the following:
-    - [ADK Facts](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents/adk_facts)
-    - [ADK agent on Cloud Run](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents/adk_cloud_run)
-    - [Airbnb and weather multiagent](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents/airbnb_planner_multiagent)
+Tutorial | Description | Difficulty
+:--------|:------------|:-----------
+[A2A and Python Quickstart](./python/1-introduction.md) | Learn to build a simple Python-based "echo" A2A server and client. | Easy
+[ADK facts](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents/adk_facts) | Build and test a simple Personal Assistant agent using the Agent Development Kit (ADK) that can provide interesting facts. | Easy
+[ADK agent on Cloud Run](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents/adk_cloud_run) | Deploy, manage, and observe an ADK-based agent as a scalable, serverless service on Google Cloud Run.| Easy
+[Multi-agent collaboration using A2A](https://github.com/a2aproject/a2a-samples/tree/main/demo) | Learn how to set up an orchestrator (host agent) that routes and manages requests among several specialized A2A-compatible agents. | Easy
+[Airbnb and weather multi-agent](https://github.com/a2aproject/a2a-samples/tree/main/samples/python/agents/airbnb_planner_multiagent) | Build a complex multi-agent system where agents collaborate using A2A to plan a trip, finding both Airbnb accommodations and weather information. | Medium
+[A2A Client-Server example using remote ADK agent](https://goo.gle/adk-a2a) | Learn how a local A2A client agent discovers and consumes the capabilities of a separate, remote ADK-based agent (for example, a prime number checker). | Easy
+[Colab Notebook](https://github.com/a2aproject/a2a-samples/blob/main/notebooks/multi_agents_eval_with_cloud_run_deployment.ipynb) | Use Colab Notebook to deploy A2A agents to Cloud Run from your browser, and then evaluate their performance with Vertex AI. | Easy
 
 ## Java
 
-- For a multi-language translator agent using Java, see [Java samples](https://github.com/a2aproject/a2a-samples/tree/main/samples/java).
+Tutorial | Description
+:--------|:-----------
+[Multi-language translator agent using Java](https://github.com/a2aproject/a2a-samples/tree/main/samples/java) | Implement the A2A protocol using Java SDK to create an interactive language translation service.
 
 ## JavaScript
 
-- For a movie research agent using JavaScript, see [JavaScript samples](https://github.com/a2aproject/a2a-samples/tree/main/samples/js).
+Tutorial | Description
+:--------|:------------
+[Movie research agent using JavaScript](https://github.com/a2aproject/a2a-samples/tree/main/samples/js) | Build an A2A agent with Node.js that uses the TMDB (The Movie Database) API to handle movie searches and queries.
 
 ## C#/.NET
 
-- For all .NET samples, see [.NET samples](https://github.com/a2aproject/a2a-dotnet/tree/main/samples).
+Tutorial | Description
+:--------|:------------
+[All .NET samples](https://github.com/a2aproject/a2a-dotnet/tree/main/samples) | Repository of foundational samples showing how to build A2A clients and servers, including an Echo Agent, using the C#/.NET SDK.