更新mongodb文档地址正确路径

更新mongodb文档地址正确路径

README.md

@@ -49,7 +49,7 @@ DataX目前已经有了比较全面的插件体系，主流的RDBMS数据库、N
 |              | Hbase1.1   |     √     |     √     |[读](https://github.com/alibaba/DataX/blob/master/hbase11xreader/doc/hbase11xreader.md) 、[写](https://github.com/alibaba/DataX/blob/master/hbase11xwriter/doc/hbase11xwriter.md)|
 |              | Phoenix4.x   |     √     |     √     |[读](https://github.com/alibaba/DataX/blob/master/hbase11xsqlreader/doc/hbase11xsqlreader.md) 、[写](https://github.com/alibaba/DataX/blob/master/hbase11xsqlwriter/doc/hbase11xsqlwriter.md)|
 |              | Phoenix5.x   |     √     |     √     |[读](https://github.com/alibaba/DataX/blob/master/hbase20xsqlreader/doc/hbase20xsqlreader.md) 、[写](https://github.com/alibaba/DataX/blob/master/hbase20xsqlwriter/doc/hbase20xsqlwriter.md)|
-|              | MongoDB    |     √     |     √     |[读](https://github.com/alibaba/DataX/blob/master/mongoreader/doc/mongoreader.md) 、[写](https://github.com/alibaba/DataX/blob/master/mongowriter/doc/mongowriter.md)|
+|              | MongoDB    |     √     |     √     |[读](https://github.com/alibaba/DataX/blob/master/mongodbreader/doc/mongodbreader.md) 、[写](https://github.com/alibaba/DataX/blob/master/mongodbwriter/doc/mongodbwriter.md)|
 |              | Hive       |     √     |     √     |[读](https://github.com/alibaba/DataX/blob/master/hdfsreader/doc/hdfsreader.md) 、[写](https://github.com/alibaba/DataX/blob/master/hdfswriter/doc/hdfswriter.md)|
 |              | Cassandra       |     √     |     √     |[读](https://github.com/alibaba/DataX/blob/master/cassandrareader/doc/cassandrareader.md) 、[写](https://github.com/alibaba/DataX/blob/master/cassandrawriter/doc/cassandrawriter.md)|
 | 无结构化数据存储     | TxtFile    |     √     |     √     |[读](https://github.com/alibaba/DataX/blob/master/txtfilereader/doc/txtfilereader.md) 、[写](https://github.com/alibaba/DataX/blob/master/txtfilewriter/doc/txtfilewriter.md)|