Added OpenAlex MCP to the list of MCP servers in README.org

[drAbreu]

Anthropic MCP Registry PR Template - alex-mcp

<!-- Provide a brief description of your changes -->
## Description
Add alex-mcp server to the official MCP registry. This is a professional MCP server that provides seamless integration with the OpenAlex academic database, enabling AI assistants to perform accurate author disambiguation, institution resolution, and researcher profile retrieval.

## Server Details
<!-- If modifying an existing server, provide details -->
- Server: **NEW SERVER** - alex-mcp (OpenAlex Academic Research Integration)
- Changes to: README.md

## Motivation and Context
<!-- Why is this change needed? What problem does it solve? -->
The academic research community lacks a reliable way for AI assistants to access verified scholarly data. Current AI tools frequently hallucinate researcher names, affiliations, and academic metrics, leading to inaccurate research assistance.

alex-mcp solves this by:
- Providing ML-powered author disambiguation (resolves "which John Smith?" problems)
- Offering ORCID-verified researcher profiles with accurate metrics
- Enabling automatic institution name resolution (MIT → Massachusetts Institute of Technology)
- Accessing OpenAlex's database of 200M+ scholarly works

This fills a critical gap for researchers, academics, and students who need accurate scholarly information in their AI workflows.

## How Has This Been Tested?
<!-- Have you tested this with an LLM client? Which scenarios were tested? -->
✅ **Tested through locally, mpc inspector, and LLM agent**

## Breaking Changes
<!-- Will users need to update their MCP client configurations? -->
- [ ] No breaking changes - this is a new server addition to README

## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
- [ ] 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)
- [x] Documentation update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes that apply. -->
- [x] I have read the [MCP Protocol Documentation](https://modelcontextprotocol.io)
- [ ] My changes follows MCP security best practices
- [x] I have updated the server's README accordingly
- [x] I have tested this with an LLM client
- [ ] My code follows the repository's style guidelines
- [ ] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [ ] I have documented all environment variables and configuration options

## Additional context
<!-- Add any other context, implementation notes, or design decisions -->

**Technical Implementation:**
- Built with FastMCP framework following official best practices
- Uses proper async/await patterns for non-blocking API calls
- Implements comprehensive error handling with graceful degradation
- Follows semantic versioning and maintains backward compatibility
- No environment variables required (uses public OpenAlex API)

**Installation Methods:**
```json
{
  "mcpServers": {
    "alex-mcp": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/drAbreu/alex-mcp.git", "alex-mcp"]
    }
  }
}

Repository: https://github.com/drAbreu/alex-mcp
License: MIT
Python Version: 3.10+
Dependencies: fastmcp, httpx, pydantic (minimal, well-maintained packages)

[olaservo]

Thanks for your contribution to the servers list. This has been merged in this combined PR: #2263

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.