docs: stop presenting the in-memory client as the way to connect (#3443)

docs_src/client/tutorial002.py

@@ -1,20 +1,17 @@
+import anyio
+
 from mcp import Client
-from mcp.server import MCPServer
-
-mcp = MCPServer("Bookshop")
-
-
-@mcp.tool(title="Search the catalog")
-def search_books(query: str, limit: int = 10) -> str:
-    """Search the catalog by title or author."""
-    return f"Found 3 books matching {query!r} (showing up to {limit})."
 
 
 async def main() -> None:
-    async with Client(mcp) as client:
+    async with Client("http://localhost:8000/mcp") as client:
         result = await client.list_tools()
         for tool in result.tools:
             print(tool.name)
             print(tool.title)
             print(tool.description)
             print(tool.input_schema)
+
+
+if __name__ == "__main__":
+    anyio.run(main)