Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -18,7 +18,7 @@ All contributors are expected to follow our [Code of Conduct](CODE_OF_CONDUCT.md
 
 ## Licensing
 
-All files in this project are under BSD-3-Clause license, license copy please check [COPYING_BSD-3](COPYING-BSD-3). For sources using BSD-3-Clause license, you may see similar copyright as below in the head of source file.
+All files in this project are under BSD-3-Clause license, license copy please check [COPYING_BSD-3](COPYING-BSD-3). For sources using BSD-3-Clause license, you may see similar copyrights to the one below in the header of a source file.
 ```
 /*
  * Copyright (c) 2015-2016, Freescale Semiconductor, Inc.
@@ -28,7 +28,7 @@ All files in this project are under BSD-3-Clause license, license copy please ch
  * SPDX-License-Identifier: BSD-3-Clause
  */
 ```
-There are also components using different license, eg. the zlib component is under zlib license. Overall license information for this project could be found in README.md.
+There are also components using different licenses, such as the zlib component which is under the zlib license. Overall, license information for this project can be found in README.md
 
 ## Developer Certification of Origin (DCO)
 we would like to adopt DCO process to encourage user contribution and avoid legally ambiguous situation. The DCO is a statement that you are the author of your contribution, and you allow our project to use your contribution under the open source license. The full statement is shown as below: