updates to readme

Author: BigKnell

README.md

@@ -23,9 +23,6 @@ The [arrays.js](assignments/arrays.js) assignment takes us through a large data
 * You can't use map, reduce, or filter to solve these problems.  Only use native JavaScript for loops.
 * Complete each challenge presented before moving on to Callbacks.
 
-### Callbacks
-
-* In the [callbacks.js](assignments/callbacks.js) file you'll be receiving a lot of practice on how to use callbacks to pass around data.
-* Write out each function using the `ES5` `function` keyword syntax.
-* Remember that a callback function is simply a function that is being passed around to other functions.
-* **Stretch Problem** After you're done with all of the functions, go ahead and re-factor all of them to use `ES6` `Arrow Functions`
+### Stretch
+* Move on to tomorrow's content and start studying callbacks, write a few of your own to get the hang of it.
+* Look at array methods like .map(), .reduce(), .filter(). use them on the data in the arrays assignment to accomplish the same things you did with the ES5 for loop.

assignments/callbacks.js

@@ -10,7 +10,7 @@
 // 5,adaine5@samsung.com,Antonietta,F
 
 // Example format of an intern object: 1,examples@you.edu,Example,F
-let example = {
+const example = {
   "id": 0,
   "name": "Example",
   "email": "examples@you.edu",
@@ -49,7 +49,7 @@ let example = {
 // 3. Nest a grandchild object in the child object with properties for name and age.  The name will be Sam and the age will be 30
 // 4. Give each of the objects the ability to speak their names using the this keyword.
 
-let parent = {}
+const parent = {}
 
 // Log the parent object's name