Update docker image name in README.md and k8s (#250)

README.md

@@ -105,13 +105,17 @@ kubectl apply -k github.com/peer-calls/peer-calls
 
 ## Using Docker
 
-Use the [`https://ghcr.io/peer-calls/peer-calls`][hub] image from Docker Hub:
+The automated builds on Docker Hub now require a subscription, and approval is
+required even for open source projects. We recently switched to using GitHub
+Container Registry instead:
+
+Use the [`ghcr.io/peer-calls/peer-calls`][ghcr] image:
 
 ```bash
 docker run --rm -it -p 3000:3000 ghcr.io/peer-calls/peer-calls:latest
 ```
 
-[hub]: https://ghcr.io/peer-calls/peer-calls
+[ghcr]: https://ghcr.io/peer-calls/peer-calls
 
 ## Building from Source
 

deploy/deployment.yaml

@@ -23,7 +23,7 @@ spec:
           name: peercalls-config
       containers:
       - name: peercalls
-        image: peercalls/peercalls
+        image: ghcr.io/peer-calls/peer-calls
         imagePullPolicy: IfNotPresent
         command: ["peer-calls", "-c", "/etc/peercalls/config.yaml"]
         ports:

scripts/lint-env-variables.sh

@@ -13,8 +13,8 @@ diff \
 exit_code=$?
 
 if [[ $exit_code -ne 0 ]]; then
-  echo "Documented environment variables in README.md and thos defined in"
-  echo "configread.go do not match. Please fix the issue!"
+  echo "Documented environment variables in README.md and those defined in"
+  echo "server/configread.go do not match. Please fix the issue!"
 fi
 
 exit $exit_code