My commit #1

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Signed-off-by: hwu25-1 <xrqbd1225@gmail.com>
Modify Contributions.txt

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Signed-off-by: hwu25-1 <xrqbd1225@gmail.com>
Modify License.txt

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Signed-off-by: hwu25-1 <xrqbd1225@gmail.com>
Merge pull request #1 from hwu25-1/devel

Merged to master branch.