Updates

Author: csev

book/notes/n_001_01.md

@@ -16,8 +16,8 @@ with a simple heap implementation.  First, if we "forget" to call `free()`
 when we are done with the memory, we have created a "memory leak" and our program
 eventually will run out of memory and abort.  C places the onus of giving back any
 dynamically allocated memory on the programmer.  Modern languages like Java, 
-JavaScript, and Python keep track of when we stop dynamic memory using a layer that
-can automatically reclaim the memory.
+JavaScript, and Python keep track of when we stop using a segment of dynamic memory
+using a layer that can automatically reclaim the memory.
 
 The more difficult problem is after a series of calls to `malloc()` and `free()` the
 heap space becomes fragmented and some cleanup is needed.   This clean up is called