move old files to a separate directory

old_curriculum/macros/macros1.rs

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+// macros1.rs
+// Make me compile! Scroll down for hints :)
+
+macro_rules! my_macro {
+    () => {
+        println!("Check out my macro!");
+    };
+}
+
+fn main() {
+    my_macro();
+}
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+// When you call a macro, you need to add something special compared to a
+// regular function call. If you're stuck, take a look at what's inside
+// `my_macro`.