Migrate container publishing to Gitea Actions

README.md

@@ -1,5 +1,18 @@
 # docker-rtorrent
 This is plain simple rtorrent with proxy and custom rtorrent.rc
 
+Source: https://git.k2patel.in/k2patel/docker-rtorrent
+
+Gitea Actions builds and publishes `docker.io/k2patel/rtorrent:latest`
+on pushes to `main`, manually, and monthly on the third day at 00:00 UTC.
+The repository requires Actions secrets `DOCKER_USERNAME` and `DOCKER_TOKEN`
+(a Docker Hub token with write access to `k2patel/rtorrent`).
+
+Builds run on the remote Kubernetes runner for `linux/amd64`, matching the
+previous GitHub build. Buildx pushes directly to Docker Hub without loading
+the image into the runner's Docker image store. Its temporary builder and
+build cache are removed after each job; no image archives or build records
+are uploaded to Gitea, and no local container builds are required.
+
 # Latest 0.16 version caveat
  - since version 0.16 explicitly set `network.bind_address.set = 0.0.0.0`, when ipv6 is disabled on kernel.