Update readme

readme.md

@@ -42,7 +42,7 @@ At all times, hitting option 1 should display knapsack variables.
 
 Option 2 will open a submenu to set/change these knapsack variables. Note that the "item set" can either be read in from
 a JSON file, or entered manually, item by item, through the console. Just select the correct option in the submenu for
-each.
+each. (For examples of exact JSON file format, consult the two example JSON files in project root).
 
 Finally, option 3 will solve for the given knapsack variables. Solutions are only output for an item set of 1 or more
 items, and a max weight greater than 0.