Added content for simple static webpage example

Dockerfile

@@ -0,0 +1,19 @@
+FROM buildpack-deps:stable-curl as builder
+
+RUN mkdir /tmp/build &&\
+    cd /tmp/build &&\
+    wget -qO caddy 'https://caddyserver.com/api/download?os=linux&arch=amd64' &&\
+    chmod +x caddy &&\
+    mkdir www
+
+COPY . /tmp/build/
+
+FROM gcr.io/distroless/static
+
+COPY --from=builder /tmp/build /
+
+WORKDIR /www
+
+EXPOSE 8080
+
+ENTRYPOINT ["/caddy", "run", "--config", "/caddy.json"]