communication: sync protocol adapater to add psync
refs: #4082
Change-Id: Ibe4649e709dfbc3cdc1f2afbfc4ff03f75a3f136
diff --git a/COPYING.md b/COPYING.md
index b5f29be..460ed34 100644
--- a/COPYING.md
+++ b/COPYING.md
@@ -15,6 +15,9 @@
- ChronoSync is licensed under the conditions of
[GPL 3.0](https://github.com/named-data/ChronoSync/blob/master/COPYING.md)
+- PSync is licensed under the conditions of
+ [LGPL 3.0](https://github.com/named-data/PSync/blob/master/COPYING.md)
+
- waf build system is licensed under the conditions of
[BSD license](https://github.com/named-data/NLSR/blob/master/waf)