Update README.md

talc/README.md

@@ -49,7 +49,7 @@ static mut ARENA: [u8; 10000] = [0; 10000];
 static ALLOCATOR: Talck<spin::Mutex<()>, ClaimOnOom> = Talc::new(unsafe {
     // if we're in a hosted environment, the Rust runtime may allocate before
     // main() is called, so we need to initialize the arena automatically
-    ClaimOnOom::new(Span::from_const_array(core::ptr::addr_of!(ARENA)))
+    ClaimOnOom::new(Span::from_array(core::ptr::addr_of!(ARENA).cast_mut()))
 }).lock();
 
 fn main() {