start tutorial

tutorial/01-rust-hello/solution/Cargo.toml

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+[package]
+name = "step01_rust_hello_solution"
+version = "0.1.0"
+edition = "2021"

tutorial/01-rust-hello/solution/src/main.rs

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+fn main() {
+    let participant_name = "Didacta Participant";
+    let workshop_title = "Rust on Embedded @ Didacta";
+
+    println!("Hello, {participant_name}!");
+    println!("Welcome to: {workshop_title}");
+    println!("Next step: types, control flow, and ownership.");
+}