PR template: cosmetic changes, fix typos
PR template: cosmetic changes, fix typos

mesosphere-mergebot/dcos,mellenburg/dcos,mesosphere-mergebot/mergebot-test-dcos,branden/dcos,amitaekbote/dcos,surdy/dcos,surdy/dcos,dcos/dcos,mesosphere-mergebot/mergebot-test-dcos,mellenburg/dcos,mellenburg/dcos,dcos/dcos,amitaekbote/dcos,GoelDeepak/dcos,amitaekbote/dcos,mesosphere-mergebot/dcos,surdy/dcos,branden/dcos,branden/dcos,mesosphere-mergebot/dcos,mesosphere-mergebot/dcos,dcos/dcos,GoelDeepak/dcos,kensipe/dcos,branden/dcos,GoelDeepak/dcos,mellenburg/dcos,kensipe/dcos,GoelDeepak/dcos,surdy/dcos,dcos/dcos,amitaekbote/dcos,mesosphere-mergebot/mergebot-test-dcos,kensipe/dcos,dcos/dcos,mesosphere-mergebot/mergebot-test-dcos,kensipe/dcos