Update README.md

Author: Lustre

README.md

@@ -14,21 +14,25 @@ php实现基于确定有穷自动机算法的铭感词过滤
         ......
     );
 
+> 实例化敏感词过滤助手
+
+    $sensitiveWordHelper = Lib\SensitiveWordFilterHelper::init();
+
 > 构建敏感词hashMap
 
     //构建敏感词hashMap
-    $sensitiveWordMap = LSensitiveWordFilter::init()->setHashMap($wordData);
+    $sensitiveWordMap = $sensitiveWordHelper->setHashMap($wordData);
 
 > 敏感词过滤
     
     //敏感词替换为***为例
-    LSensitiveWordFilter::init()->replaceSensitiveWord($sensitiveWordMap, $content, '***');
+    $filterContent = $sensitiveWordHelper->replaceSensitiveWord($sensitiveWordMap, $content, '***');
 
 > 你也可以获取文字中的敏感词
 
     //获取内容中所有的敏感词
-    $sensitiveWordGroup = LSensitiveWordFilter::init()->getSensitiveWord($sensitiveWordMap, $content);
+    $sensitiveWordGroup = $sensitiveWordHelper->getSensitiveWord($sensitiveWordMap, $content);
     //仅且获取一个敏感词
-    $sensitiveWordGroup = LSensitiveWordFilter::init()->getSensitiveWord($sensitiveWordMap, $content, 1);
+    $sensitiveWordGroup = $sensitiveWordHelper->getSensitiveWord($sensitiveWordMap, $content, 1);
 
-*如果大家有更好的建议，请大家多多指正，O(∩_∩)O谢谢*
+*如果大家有更好的建议，请大家多多指正，O(∩_∩)O谢谢*