update README

Author: ikreymer

README.md

@@ -1,6 +1,12 @@
-# Base Browser for Browsertrix
+# Base Browser for Browsertrix Crawler
 
 This repository contains the base platform-specific deb files for Browsertrix Crawler builds.
 
 The `.deb` files are placed in platform-specific directories, `linux/amd64` and `linux/arm64` to support
 builds for those platforms. Chromium is used for ARM64 while Chrome is used for amd64 builds.
+
+The image can be built manually via `docker buildx build --platform linux/amd64,linux/arm64 --push -t webrecorder/browsertrix-browser-base:VERSION .`
+
+The CI is also setup to build the image and push on release.
+
+The current browser (Chrome/Chromium) is 91.