Upgrade Gitea Docker Compose

As suggested by @techknowlogick I’m including backup procedures for Docker which I dropped into a separate discussion topic:

Also, be sure to explicitly set the tag version (e.g. 1.5.2) in your docker-compose.yml file. If you’re having any difficulty pulling a specific image version using Compose try instead docker pull gitea/gitea:1.5.2 where 1.5.2 is the tagged version desired (see Docker Hub for available tags).

Last thing worth noting. If you run into any issues use docker ps to ensure you’re not running two instances of gitea on different versions and if docker down <service> isn’t working you may use docker stop <service> instead.