feat: bin example now references the local example_lib

Cargo.lock

@@ -5,6 +5,9 @@ version = 4
 [[package]]
 name = "example_bin"
 version = "0.1.0"
+dependencies = [
+ "example_lib",
+]
 
 [[package]]
 name = "example_lib"

example_bin/Cargo.toml

@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+example_lib = { path = "../example_lib" }

example_bin/src/main.rs

@@ -1,3 +1,11 @@
+use example_lib::*;
+
 fn main() {
     println!("Hello, world!");
+
+    let result = add(1, 1);
+    assert_eq!(result, 2);
+
+    let result = sub(1, 1);
+    assert_eq!(result, 0);
 }