Reoconfigure k8s to host service by subdomain rather than path splitting

[zenlex]

currently service is set to respond via ingress at api.tulsawebdevs.org/proposals which is getting annoying with paths and not super easy to read. We're going to move to a subdomain based splitting of services, so this service should get accessed via vote.tulsawebdevs.org instead.

• rename repo and package name to services-vote
• Remove path rewriting/prefixing
• update host
• update image name in k8s manifest
• add dns record for vote.tulsawebdevs.org to point to load balancer
• update SERVICES.md to document convention of [service name as verb].tulsawebdevs.org/ as naming convention for service repos and subdomains