add deprecation notice

.gitlab-ci.yml

@@ -1,16 +0,0 @@
-services:
-  - docker:dind
-
-variables:
-  IMAGE_NAME: thallian/unbound-dns
-
-build:
-  stage: build
-  script:
-    - docker login -u $DOCKER_USER -p $DOCKER_PASSWORD $DOCKER_REGISTRY
-    - docker build -t $IMAGE_NAME:$CI_COMMIT_SHA .
-    - docker build -t $IMAGE_NAME:$CI_COMMIT_REF_NAME .
-    - docker build -t $IMAGE_NAME:latest .
-    - docker push $IMAGE_NAME:$CI_COMMIT_SHA
-    - docker push $IMAGE_NAME:$CI_COMMIT_REF_NAME
-    - docker push $IMAGE_NAME:latest

README.md

@@ -1,3 +1,5 @@
+# NO LONGER MAINTAINED
+
 File access with [ProFTPD](http://www.proftpd.org/) over sftp and ldap authentication.
 
 # Volumes