Add script to generate stub README for docker-library repos

generate-repo-stub-readme.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+set -e
+
+cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
+
+repo="$1"
+
+if [ -z "$repo" ]; then
+	echo >&2 'error: no repo specified'
+	cat >&2 <<EOUSAGE
+usage: $0 repo [> README.md]
+   ie: $0 php > ../php/README.md
+
+   This script generates a stub README to standard out for the specified repo.
+EOUSAGE
+	exit 1
+fi
+
+gitRepo='https://github.com/docker-library/docs'
+hubPage="https://registry.hub.docker.com/_/$repo/"
+
+cat <<EOREADME
+# About this Repo
+
+This is the Git repo of the official Docker image for [$repo]($hubPage). See the
+Hub page for the full readme on how to use the Docker image and for information
+regarding contributing and issues.
+
+The full readme is generated over in [docker-library/docs]($gitRepo),
+specificially in [docker-library/docs/$repo]($gitRepo/tree/master/$repo).
+EOREADME