Update changelog

Author: zguesmi

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## vNEXT
 
+- Save IexecLibOrders_v5 in config file (#242)
 - Migrate proxy to Diamond pattern (ERC-2535):
   - Restore compatibility with iExec SDK. (#240)
   - Target latest EVM version (#239)
@@ -14,7 +15,6 @@
   - Add Diamond contract unit tests (#224)
   - Fix `fallback` and `receive` (#223)
   - Migrate contracts (#222)
-
 - Add Github Action CI in order to publish NPM package
 
 ### Updated contracts