Introduced additional column headings to explicate the common pattern in DP tables.

dynamic-programming/notes.md

@@ -82,8 +82,8 @@ Problem: Subject to an integer weight limit, what choice of items (allowing repe
 *   Item A weighs 3 kg and is worth $10.
 *   Item B weighs 4 kg and is worth $14.
 
-                     Backpointer
-                 -------------------
+      Vertex         Backpointer      Notes for Humans
+    -----------  -------------------  ----------------
     Weight (kg)   Item   Total Value  (Back to Weight)
     -----------  ------  -----------  ----------------
               0  [none]           $0  ⊥
@@ -141,10 +141,10 @@ Problem: Wrap a paragraph to a line length, minimizing the sum of the squares of
 >  x x x x xxxx xxxx
 > 0 1 2 3 4    5    6
 
-                    Backpointer
-           -----------------------------
+    Vertex          Backpointer
+    ------  -----------------------------
      Index  Previous Index  Total Penalty
-    -----  --------------  -------------
+    ------  --------------  -------------
          0               ⊥              0
          1               …              …
          2               …              …