fix(docs): add -p parameter to the cargo run commands in documentation (#592)

* fix(docs): Add -p mcp-client-examples to cargo run commands in clients/README.md

* fix(docs): Add -p mcp-server-examples to cargo run commands in examples/servers/README.md

* fix(docs): Add -p parameter to cargo run commands in other documentation

examples/clients/src/sampling_stdio.rs

@@ -12,7 +12,7 @@ use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
 ///
 /// This client demonstrates how to handle sampling requests from servers.
 /// It includes a mock LLM that generates simple responses.
-/// Run with: cargo run --example clients_sampling_stdio
+/// Run with: cargo run -p mcp-client-examples --example clients_sampling_stdio
 #[derive(Clone, Debug, Default)]
 pub struct SamplingDemoClient;