Update NOTICE file (#12)

diff --git a/NOTICE.md b/NOTICE.md
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-Apache OpenWhisk Runtime PHP
-Copyright 2016-2018 The Apache Software Foundation
-
-This product includes software developed at
-The Apache Software Foundation (http://www.apache.org/).
diff --git a/NOTICE.txt b/NOTICE.txt
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+Apache OpenWhisk Runtime PHP
+Copyright 2016-2018 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
+
+========================================================================
+MIT License
+========================================================================
+
+The following components are provided under the MIT License. See project link for details.
+
+     (MIT License) gradle-scalafmt (cz.alenkacz:gradle-scalafmt:1.6.0 - https://github.com/alenkacz/gradle-scalafmt)
\ No newline at end of file