add httpDelete

hopefully last typos I made

snippets/httpPut.md

@@ -1,28 +1,24 @@
-### httpPost
+### httpDelete
 
-Makes a `PUT` request to the passed URL.
+Makes a `DELETE` request to the passed URL.
 
-Use `XMLHttpRequest` web api to make a `put` request to the given `url`.
-Set the value of an `HTTP` request header with `setRequestHeader` method.
+Use `XMLHttpRequest` web api to make a `delete` request to the given `url`.
 Handle the `onload` event, by running the provided `callback` function.
 Handle the `onerror` event, by running the provided `err` function.
-Omit the last argument, `err` to log the request to the console's error stream by default.
+Omit the third argument, `err` to log the request to the console's error stream by default.
 
 ```js
-const httpPut = (url, data, callback, err = console.error) => {
-    const request = new XMLHttpRequest();
-    request.open("PUT", url, true);
-    request.setRequestHeader('Content-type','application/json; charset=utf-8');
-    request.onload = () => callback(request);
-    request.onerror = () => err(request);
-    request.send(data);
+const httpDelete = (url, callback, err = console.error) => {
+  const request = new XMLHttpRequest();
+  request.open("DELETE", url, true);
+  request.onload = () => callback(request);
+  request.onerror = () => err(request);
+  request.send();
 };
 ```
 
 ```js
-const password = "fooBaz";
-const data = JSON.stringify(password);
-httpPost(`https://website.com/users/123`, data, request => {
+httpDelete('https://website.com/users/123', request => {
   console.log(request.responseText);
-}); // 'Updates a user's password in database'
+}); // 'Deletes a user from the database'
 ```