refactor docs

docs/en/sdks/go-sdk/core/_index.md

@@ -20,49 +20,6 @@ This simplifies integrating external functionalities (like APIs, databases, or
 custom logic) managed by the Toolbox into your workflows, especially those
 involving Large Language Models (LLMs).
 
-<!-- TOC ignore:true -->
-<!-- TOC -->
-
-- [MCP Toolbox Core SDK](#mcp-toolbox-core-sdk)
-  - [Installation](#installation)
-  - [Quickstart](#quickstart)
-  - [Usage](#usage)
-  - [Transport Protocols](#transport-protocols)
-    - [Supported Protocols](#supported-protocols)
-    - [Example](#example)
-  - [Loading Tools](#loading-tools)
-    - [Load a toolset](#load-a-toolset)
-    - [Load a single tool](#load-a-single-tool)
-  - [Invoking Tools](#invoking-tools)
-  - [Client to Server Authentication](#client-to-server-authentication)
-    - [When is Client-to-Server Authentication Needed?](#when-is-client-to-server-authentication-needed)
-    - [How it works](#how-it-works)
-    - [Configuration](#configuration)
-    - [Authenticating with Google Cloud Servers](#authenticating-with-google-cloud-servers)
-    - [Step by Step Guide for Cloud Run](#step-by-step-guide-for-cloud-run)
-  - [Authenticating Tools](#authenticating-tools)
-    - [When is Authentication Needed?](#when-is-authentication-needed)
-    - [Supported Authentication Mechanisms](#supported-authentication-mechanisms)
-    - [Step 1: Configure Tools in Toolbox Service](#step-1-configure-tools-in-toolbox-service)
-    - [Step 2: Configure SDK Client](#step-2-configure-sdk-client)
-      - [Provide an ID Token Retriever Function](#provide-an-id-token-retriever-function)
-      - [Option A: Add Default Authentication to a Client](#option-a-add-default-authentication-to-a-client)
-      - [Option B: Add Authentication to a Loaded Tool](#option-b-add-authentication-to-a-loaded-tool)
-      - [Option C: Add Authentication While Loading Tools](#option-c-add-authentication-while-loading-tools)
-    - [Complete Authentication Example](#complete-authentication-example)
-  - [Binding Parameter Values](#binding-parameter-values)
-    - [Why Bind Parameters?](#why-bind-parameters)
-      - [Option A: Add Default Bound Parameters to a Client](#option-a-add-default-bound-parameters-to-a-client)
-    - [Option B: Binding Parameters to a Loaded Tool](#option-b-binding-parameters-to-a-loaded-tool)
-    - [Option C: Binding Parameters While Loading Tools](#option-c-binding-parameters-while-loading-tools)
-    - [Binding Dynamic Values](#binding-dynamic-values)
-- [Using with Orchestration Frameworks](#using-with-orchestration-frameworks)
-- [Contributing](#contributing)
-- [License](#license)
-- [Support](#support)
-
-<!-- /TOC -->
-
 ## Installation
 
 ```bash
@@ -553,27 +510,7 @@ dynamicBoundTool, err := tool.ToolFrom(core.WithBindParamStringFunc("param", get
 
 # Using with Orchestration Frameworks
 
-To see how the MCP Toolbox Go SDK works with orchestration frameworks, check out the end-to-end examples in the [/samples/](https://github.com/googleapis/mcp-toolbox-sdk-go/tree/main/core/samples) folder.
-
-Use the [tbgenkit package](https://github.com/googleapis/mcp-toolbox-sdk-go/tree/main/tbgenkit) to convert Toolbox Tools into Genkit compatible tools.
-
-# Contributing
-
-Contributions are welcome! Please refer to the [DEVELOPER.md](https://github.com/googleapis/mcp-toolbox-sdk-go/blob/main/DEVELOPER.md)
-file for guidelines on how to set up a development environment and run tests.
-
-# License
-
-This project is licensed under the Apache License 2.0. See the
-[LICENSE](https://github.com/googleapis/mcp-toolbox-sdk-go/blob/main/LICENSE) file for details.
-
-# Support
-
-If you encounter issues or have questions, check the existing [GitHub Issues](https://github.com/googleapis/genai-toolbox/issues) for the main Toolbox project.
-
-# Samples for Reference
-
-These samples demonstrate how to integrate the MCP Toolbox Go Core SDK with popular orchestration frameworks.
+To see how the MCP Toolbox Go SDK works with orchestration frameworks, check out these end-to-end examples given below.
 
 <details>
 <summary>Google GenAI</summary>