Added some comments to the top

build.sh

@@ -1,5 +1,8 @@
 #!/usr/bin/env bash
 
+# TODO: Add a comment block at the top of the script, describing what it does.
+# TODO: Add a '-h' or '--help' flag, that displays information about the script, and how to use it.
+
 set -o errexit # Stop executing when a command fails
 set -o nounset # Stop executing when accessing an unset variable
 set -o pipefail # Treat a pipeline as failing, even if one command in the pipeline fails