add a release script

release.sh

diff --git a/release.sh b/release.sh
new file mode 100755
index 0000000..a99b8ca
--- /dev/null
+++ b/release.sh
@@ -0,0 +1,10 @@
+#/bin/sh
+#
+# Usage: if you're releasing version 1.2.3, run:
+#   ./release.sh 1.2.3
+#
+# This creates a release archive named bazel-worker-api-v1.2.3.tar.gz.
+# Now create a release using GitHub's UI, with tag `v1.2.3` and release name `1.2.3`. Upload this archive as an attachment. Profit!
+
+VER=$1
+git archive --format=tar --prefix=bazel-worker-api-${VER}/ `git rev-parse HEAD` java proto | gzip > bazel-worker-api-v${VER}.tar.gz