fix(examples): add clients in examples's readme (#225)

Signed-off-by: jokemanfire <hu.dingyang@zte.com.cn>

examples/clients/src/git_stdio.rs

@@ -0,0 +1,48 @@
+use anyhow::Result;
+use rmcp::{
+    model::CallToolRequestParam,
+    service::ServiceExt,
+    transport::{ConfigureCommandExt, TokioChildProcess},
+};
+use tokio::process::Command;
+use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    // Initialize logging
+    tracing_subscriber::registry()
+        .with(
+            tracing_subscriber::EnvFilter::try_from_default_env()
+                .unwrap_or_else(|_| format!("info,{}=debug", env!("CARGO_CRATE_NAME")).into()),
+        )
+        .with(tracing_subscriber::fmt::layer())
+        .init();
+    let service = ()
+        .serve(TokioChildProcess::new(Command::new("uvx").configure(
+            |cmd| {
+                cmd.arg("mcp-server-git");
+            },
+        ))?)
+        .await?;
+
+    // or serve_client((), TokioChildProcess::new(cmd)?).await?;
+
+    // Initialize
+    let server_info = service.peer_info();
+    tracing::info!("Connected to server: {server_info:#?}");
+
+    // List tools
+    let tools = service.list_tools(Default::default()).await?;
+    tracing::info!("Available tools: {tools:#?}");
+
+    // Call tool 'git_status' with arguments = {"repo_path": "."}
+    let tool_result = service
+        .call_tool(CallToolRequestParam {
+            name: "git_status".into(),
+            arguments: serde_json::json!({ "repo_path": "." }).as_object().cloned(),
+        })
+        .await?;
+    tracing::info!("Tool result: {tool_result:#?}");
+    service.cancel().await?;
+    Ok(())
+}