Re-add extra empty line on Dockerfile-alpine

public-docker-images/Dockerfile-alpine

@@ -7,6 +7,7 @@ RUN GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -a -ldflags "-X git
     GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -a -o /build/veneur-prometheus ./cmd/veneur-prometheus &&\
     GOOS=$TARGETOS GOARCH=$TARGETARCH CGO_ENABLED=0 go build -a -ldflags "-X github.com/stripe/veneur/v14/util/build.VERSION=${VERSION} -X github.com/stripe/veneur/v14/util/build.BUILD_DATE=$(date +%s)" -o /build/veneur-proxy ./cmd/veneur-proxy
 
+
 FROM alpine:3.16 AS release
 LABEL maintainer="The Stripe Observability Team <support@stripe.com>"
 RUN apk add --no-cache ca-certificates

public-docker-images/README.md

@@ -9,13 +9,13 @@ You should run these commands from the project root.
 For the Debian-based image:
 
 ```
-docker buildx build --platform=linux/amd64,linux/arm64 --build-arg=VERSION=$(git rev-parse HEAD) --no-cache -t veneur:local -f public-docker-images/Dockerfile-debian-sid --output tar . | docker import -
+docker buildx build --platform=linux/amd64,linux/arm64 --build-arg=VERSION=$(git rev-parse HEAD) --no-cache -t veneur:local -f public-docker-images/Dockerfile-debian-sid --output=tar . | docker import -
 ```
 
 For the Alpine Linux-based image:
 
 ```
-docker buildx build --platform=linux/amd64,linux/arm64 --build-arg=VERSION=$(git rev-parse HEAD) --no-cache -t veneur:local -f public-docker-images/Dockerfile-alpine --output tar . | docker import -
+docker buildx build --platform=linux/amd64,linux/arm64 --build-arg=VERSION=$(git rev-parse HEAD) --no-cache -t veneur:local -f public-docker-images/Dockerfile-alpine --output=tar . | docker import -
 ```
 
 For both cases you could remove ```--platform` arugment if you just plan build for the host architechture.