remove .deb files after install, update README

Author: ikreymer

Dockerfile

@@ -23,7 +23,7 @@ RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
 ARG TARGETPLATFORM
 ARG VERSION=$VERSION
 
-COPY $VERSION/$TARGETPLATFORM/*.deb /deb/
+COPY $VERSION/$TARGETPLATFORM/*.deb /tmp/deb/
 
-RUN echo "installing from $TARGETPLATFORM"; dpkg -i /deb/*.deb;
+RUN echo "installing from $TARGETPLATFORM"; dpkg -i /tmp/deb/*.deb; rm -rf /tmp/deb/
 

README.md

@@ -2,7 +2,7 @@
 
 This repository contains the browser .deb files as well as a Dockerfile for platform-specific browser image for Browsertrix Crawler, based on Ubuntu 22.04.
 
-The build uses Google Chrome for AMD64 builds and Chromium builds for ARM64
+The build uses Google Chrome for AMD64 builds and Chromium builds for ARM64.
 
 The `.deb` files are placed in platform-specific directories, `<VERSION>/linux/amd64` and `<VERSION>/linux/arm64` to support
 builds for those platform.
@@ -11,7 +11,7 @@ The CI is also setup to build the image and push on release.
 
 This image can be accessed from `webrecorder/browsertrix-browser-base:<VERSION>`.
 
-See `build.sh` for how to build this image locally.
+See `build.sh` for how to build this image locally using `docker buildx`.
 
 The releases correspond to a new version of Chrome/Chromium, and current latest release is: **101**.