fix: init syntax err in readme doc

Poseidon-fan · Poseidon-fan · commit ef41b9685b8d · 2026-01-09T19:01:11.000+08:00
diff --git a/README.md b/README.md
@@ -13,7 +13,7 @@ To use buddy_system_allocator for global allocator:
 use buddy_system_allocator::LockedHeap;
 
 #[global_allocator]
-static HEAP_ALLOCATOR: LockedHeap = LockedHeap::<33>::empty();
+static HEAP_ALLOCATOR: LockedHeap<32> = LockedHeap::empty();
 ```
 
 To init the allocator:
