Update LICENSING.md

Signed-off-by: 大数据中台AllData创始人 <m13602574132@163.com>

LICENSING.md

@@ -1,6 +1,7 @@
 The source code of alldata is covered by the following dual licenses:
 
 (1) AGPL 3.0: https://www.gnu.org/licenses/agpl-3.0.en.html
+
 (2) ZPL  1.2: http://zpl.pub/page/zplv12.html
 
 You can choose ZPL or AGPL to use alldata.