Update Readme

* Update README.md
---------

Co-authored-by: Omindu Rathnaweera <omindu.dishan@gmail.com>

resources/echo_server.py

@@ -0,0 +1,24 @@
+from mcp.server.fastmcp import FastMCP
+
+mcp = FastMCP("Echo")
+
+
+@mcp.resource("echo://{message}")
+def echo_resource(message: str) -> str:
+    """Echo a message as a resource"""
+    return f"Resource echo: {message}"
+
+
+@mcp.tool()
+def echo_tool(message: str) -> str:
+    """Echo a message as a tool"""
+    return f"Tool echo: {message}"
+
+
+@mcp.prompt()
+def echo_prompt(message: str) -> str:
+    """Create an echo prompt"""
+    return f"Please process this message: {message}"
+
+if __name__ == "__main__":
+    mcp.run(transport="sse")