THRIFT-4508: end trusty CI builds; handle nodejs 4.x LTS EOL; update docs
diff --git a/build/docker/ubuntu-artful/Dockerfile b/build/docker/ubuntu-artful/Dockerfile
index 0b5b8ed..416d75e 100644
--- a/build/docker/ubuntu-artful/Dockerfile
+++ b/build/docker/ubuntu-artful/Dockerfile
@@ -19,6 +19,7 @@
# - dotnet: does not come with Ubuntu
# - haxe: version 3.4.2 that comes with Ubuntu cores in our CI build
# - nodejs: want v8, Ubuntu comes with v6
+#
FROM buildpack-deps:artful-scm
MAINTAINER Apache Thrift <dev@thrift.apache.org>