Fix some English mistakes

AbdulRahmanDbes · AbdulRahmanDbes · commit 19dea240770b · 2017-10-22T18:29:59.000+02:00
diff --git a/Week5/REVIEW.MD b/Week5/REVIEW.MD
@@ -14,15 +14,15 @@ this review covers:
 - JavaScript callback functions tutorial: https://www.youtube.com/watch?v=pTbSfCT42_M&index=17&list=WL
 
 ## XMLHttpRequest
-**XMLHttpRequest** is an objects to interact with servers. You can retrieve data from a URL without having to do a full page refresh. XMLHttpRequest is used heavily in Ajax programming - [MDN](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest).
+**XMLHttpRequest** is an object to interact with servers. You can retrieve data from a URL without having to do a full page refresh. XMLHttpRequest is used heavily in Ajax programming - [MDN](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest).
 
 So what is Ajax?
 **Ajax** is a method of exchanging data with a server, and updating parts of a web page without reloading the entire page.
 
-Let's diving into the code:
+Let's dive into the code:
 
 First, we need to make an instance from 'XMLHttpRequest' object.
-```javascript
+```js
 var http = new XMLHttpRequest();
 ```
 When we are doing a request it goes through 5 states:
@@ -32,8 +32,8 @@ When we are doing a request it goes through 5 states:
 * 3 : request is in process.
 * 4 : request is complete.
 
-In the code below we are checking if the request is complete or not, and we check the status == 200 just to make sure that we do not get 404 error - Take a look about [HTTP Status Code](https://httpstatuses.com).
-```javascript
+In the code below we are checking if the request is complete or not, and we check the status == 200 just to make sure that we do not get a 404 error - Read more about it here: [HTTP Status Code](https://httpstatuses.com).
+```js
  http.onreadystatechange = function() {
         if ( http.readyState == 4 && http.status == 200) {
              console.log('Response from the server: ' + http.response); 
@@ -48,16 +48,16 @@ There are methods to deal with a server like (GET, POST, UPDATE, DELETE…)
 * DELETE: delete date from the server.
 
 To initialize a request we use [open](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/open) method. The syntax is:
-```javascript
+```js
 XMLHttpRequest.open(method, url, async, user, password);
 ```
 The parameters _method_ and _url_ are mandatory, _user_ and _password_ are optional. True is a default value for _async_.
 
-```javascript
+```js
 http.open("GET", URL, true/false);
 ```
 At the end we have to send our request to the server through [send](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/send) method. In our situation we are retrieving a data from the server, so we do not have to pass a parameter to the send request.
 
-```javascript
+```js
 http.send();
 ```
