Clarify note in std::sync::LazyLock example

Author: AeonSolstice

library/std/src/sync/lazy_lock.rs

@@ -31,7 +31,7 @@ union Data<T, F> {
 /// ```
 /// use std::sync::LazyLock;
 ///
-/// // n.b. static items do not call [`Drop`] on program termination, so this won't be deallocated.
+/// // Note: static items do not call [`Drop`] on program termination, so this won't be deallocated.
 /// // this is fine, as the OS can deallocate the terminated program faster than we can free memory
 /// // but tools like valgrind might report "memory leaks" as it isn't obvious this is intentional.
 /// static DEEP_THOUGHT: LazyLock<String> = LazyLock::new(|| {