Add Simon Leung, remove Swetha Repakula in git-authors
Add Simon Leung, remove Swetha Repakula in git-authors

Signed-off-by: Zach Robinson <c0daa2d28332ab5d762606cb96a47a24c48efa05@pivotal.io>

cloudfoundry-incubator/sprout-capi,cloudfoundry-incubator/sprout-capi