doc: add links

docs/tutorial/mcp.md

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 # Model Context Protocol
 
-The Model Context Protocol (MCP) is an open protocol initiated by [Anthropic] that enables integration between LLM applications and external data sources and tools. MyDuck Server work seamlessly with the official PostgreSQL MCP server implementation. This guide will walk you through the process of setting up a MyDuck Server instance and connecting it to the PostgreSQL MCP server.
+The [Model Context Protocol](https://modelcontextprotocol.io/introduction) (MCP) is an open protocol initiated by [Anthropic](https://www.anthropic.com/) that enables integration between LLM applications and external data sources and tools. MyDuck Server works seamlessly with the official PostgreSQL MCP server implementation. This guide will walk you through the process of setting up a MyDuck Server instance and connecting it to the PostgreSQL MCP server.
 
 ## Steps
 
@@ -359,4 +359,4 @@ The Model Context Protocol (MCP) is an open protocol initiated by [Anthropic] th
     > 4. Several European countries (Denmark, Austria, Switzerland, Finland, Portugal) feature prominently in renewable energy adoption.
     > 5. Some countries like New Zealand and Canada also have significant renewable energy shares.
     > 
-    > In summary, while China and the United States are the largest consumers in absolute terms, countries like Norway, Sweden, and Brazil are leading in terms of renewable energy share and growth rates. The transition to renewable energy is a global trend, with different countries showing strength in various aspects of renewable energy consumption.
+    > In summary, while China and the United States are the largest consumers in absolute terms, countries like Norway, Sweden, and Brazil are leading in terms of renewable energy share and growth rates. The transition to renewable energy is a global trend, with different countries showing strength in various aspects of renewable energy consumption.