Add Uberall MCP Server to README

[rmondejar]

Description

This PR aims to add Uberall's MCP server to the official server list in README.md.
It follows the existing format and styling, enabling contributors to quickly discover and use Uberall’s MCP server for multi-location business data management.

Server Details

• Server: Uberall MCP Server
• Changes to: Adding a new server entry to README.md

Motivation and Context

The Uberall MCP server enables LLMs and agents to interact with multi-location business data. By listing it in the official directory, users can utilize it in various use cases, such as:

• Optimizing business and location profiles
• Integrating tools for multi-location operations
• Automating social media management workflows

How Has This Been Tested?

• Verified that the README update renders correctly in GitHub's Markdown preview
• Confirmed that the link points to the correct repository (GitHub)
• Tested the MCP server locally and confirmed tool responses (e.g., location.search, create_social_post) using Claude Desktop, Cursor, and GitHub Copilot

Breaking Changes

None — this PR only adds a documentation entry.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Protocol Documentation
• My changes follow MCP best practices
• The server README is updated and public
• I have tested this with an LLM client
• My changes follow the repository's style guidelines
• New and existing tests (if any) pass locally
• I have added appropriate error handling
• I have documented all environment variables and configuration options

Additional context

Implemented with the official Kotlin MCP SDK, it supports both Kotlin FatJar and Docker image distributions.

[olaservo]

Thanks for your contribution to the servers list. This has been merged in this combined PR: #2374

This is a new process we're trying out, so if you see any issues feel free to re-open the PR and tag me.