added notes did more stuff

tuple1/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "tuple1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

tuple1/src/main.rs

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+fn main() {
+    let x: (i32, f64, u8) = (500, 6.4, 1);
+    let _five_hundred = x.0;
+    let _six_point_four = x.1;
+    let _one = x.2;
+}