Fix armhf sample
FROM alpine:3.6
-ADD https://github.com/openfaas/faas/releases/download/0.6.15/fwatchdog-armhf /usr/bin
+ADD https://github.com/openfaas/faas/releases/download/0.6.15/fwatchdog-armhf /usr/bin/fwatchdog
RUN chmod +x /usr/bin/fwatchdog
RUN apk add --no-cache figlet
