Added comments describing the purpose / usage of those shell scripts.
diff --git a/rebuild-local-repo.sh b/rebuild-local-repo.sh
index 536cb99..4ea1fbf 100755
--- a/rebuild-local-repo.sh
+++ b/rebuild-local-repo.sh
@@ -1,5 +1,16 @@
#!/bin/bash
+#
+# A helper script to update the modified local copy of "curator" or the "kryo2"
+# version.
+#
+# NOTE: This script is useful only for developers.
+# Usage:
+# 1. Update the "curator" jar file or the "kryo2" pom.xml file as appropriate.
+# 2. Run this script.
+# 3. Push the modified repo/ directory to the source code repository.
+#
+
if [ -z "${MVN}" ]; then
MVN="mvn"
fi