Merge pull request #15 from WonhongNam/patch-1

A bug in the Lines 83-85 in the previous version.

Author: careermonk

src/Chapter_04_Stacks/StackWithLinkedLists.c

@@ -81,8 +81,8 @@ void deleteStack(struct Stack *stk){
     p = stk->top;
     while( p) {
         temp = p->next;
-        p = p->next;
-        free(temp);
+        free(p);
+        p = temp;
     }
     free(stk);
  }