hacktoberfest: Design a new page of 'team'

[ROOMrepair]

from issue #3131, try to add a new page team ,I don't know if this is the right way to open pull request.

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[ROOMrepair]

/assign @rayzhou2017

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[APPROVALNOTIFIER] This PR is NOT APPROVED

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[ks-ci-bot]

@ROOMrepair: PR needs rebase.

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