diff --git a/.zk/notebook.db b/.zk/notebook.db
index 3f4536b..c07d569 100644
Binary files a/.zk/notebook.db and b/.zk/notebook.db differ
diff --git a/zk/Heap_memory.md b/zk/Heap_memory.md
index 4a2f5c3..aa2d010 100644
--- a/zk/Heap_memory.md
+++ b/zk/Heap_memory.md
@@ -29,6 +29,8 @@ data = malloc(512)
 
 The first line assigns a special _pointer_ variable (indicated by `void *`
 rather than `int` or `str`) . This is a variable only holds a memory address.
-The `malloc` method assigns 512 bytes to the `data` variable.
+The `malloc` method requests 512 bytes that it wants to assign to the `data`
+variable. it will return the address of the first byte in the newly allocated
+memory.
 
 ## Related notes