 Editing pass for new content (#570)
 Editing pass for new content (#570)

Olga Maciaszek-Sharma added very nice content, in the form of a three-second and a three-minute introduction for the verifier. I edited her additions to conform to our usual standards and corporate voice.
spring-cloud/spring-cloud-contract,spring-cloud/spring-cloud-contract,spring-cloud/spring-cloud-contract