update response status code desc

Author: yangsen

library/src/main/java/com/qiniu/android/http/ResponseInfo.java

@@ -14,6 +14,10 @@
  */
 public final class ResponseInfo {
 
+    /**
+     * StatusCode >= 100 见：https://developer.qiniu.com/kodo/3928/error-responses
+     */
+    
     @Deprecated
     public static final int ResquestSuccess = 200;