Update Dockerfile

Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine:3.13.5
 LABEL org.opencontainers.image.source="https://github.com/matjazp/alpine-bind"
 RUN apk add --no-cache bind bash bash-completion nano openrc syslog-ng
-RUN echo testx
+RUN echo testxs
 VOLUME [ “/sys/fs/cgroup” ]
 CMD [ "bash" ]