Update document

Author: souljungkim

README.md

@@ -36,7 +36,7 @@
         npm i @sj-js/crossman
         ```
         ```js
-      const { ready, getEl, newEl, cloneEl, searchEl, getClass, getData, SjEvent, getXHR, postXHR, putXHR, deleteXHR } = require('@sj-js/crossman');
+        const { ready, getEl, newEl, cloneEl, searchEl, getClass, getData, SjEvent, getXHR, postXHR, putXHR, deleteXHR } = require('@sj-js/crossman');
         ```
 
 1. Simple Example

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@sj-js/crossman",
-  "version": "1.2.0",
+  "version": "1.2.2",
   "description": "crossman is JavaScript Util for Cross-Browsing",
   "homepage": "https://sj-js.github.io/sj-js/crossman",
   "main": "./index.js",