docs: Add note for Github Repo Name Change (#2970)

## Description

This PR Adds:
- Note in README.md
- Note in official docs

addressing the Github Repo Name change from `genai-toolbox` to
`mcp-toolbox`

The github link in the top right corner of the navbar will be updated in
the PR #2936

Author: dishaprakash

README.md

@@ -32,6 +32,10 @@ It serves a **dual purpose**:
 
 This README provides a brief overview. For comprehensive details, see the [full documentation](https://mcp-toolbox.dev/).
 
+> [!IMPORTANT]  
+> **Repository Name Update:** The `genai-toolbox` repository has been officially renamed to `mcp-toolbox`. To ensure your local environment reflects the new name, you may update your remote:
+> `git remote set-url origin https://github.com/googleapis/mcp-toolbox.git`
+
 > [!NOTE]
 > This solution was originally named “Gen AI Toolbox for Databases” (github.com/googleapis/mcp-toolbox) as its initial development predated MCP, but was renamed to align with the MCP compatibility.
 

docs/en/documentation/introduction/_index.md

@@ -12,6 +12,11 @@ It serves a **dual purpose**:
 1. **Ready-to-use MCP Server (aka ['Build-Time'](/getting-started/#build-time)):** Instantly connect Gemini CLI, Google Antigravity, Claude Code, Codex, or other MCP clients to your databases using our *prebuilt generic tools*. Talk to your data, explore schemas, and generate code without writing boilerplate.
 2. **Custom Tools Framework (aka ['Run-Time'](/getting-started/#runtime)):** A robust framework to build specialized, highly secure AI tools for your production agents. Define structured queries, semantic search, and NL2SQL capabilities safely and easily.
 
+{{< notice tip >}}
+**Repository Name Update:** The GitHub repository for this project has been officially renamed from `genai-toolbox` to `mcp-toolbox`. We recommend updating your local Git remote URL for consistency:
+`git remote set-url origin https://github.com/googleapis/mcp-toolbox.git`
+{{< /notice >}}
+
 {{< notice note >}}
 This document has been updated to support the flat configuration file format. To
 view documentation with original configuration file format, please navigate to the