improved explanations
diff --git a/indexer-cli/src/site/apt/index.apt.vm b/indexer-cli/src/site/apt/index.apt.vm
index 6e4bd69..558db8b 100644
--- a/indexer-cli/src/site/apt/index.apt.vm
+++ b/indexer-cli/src/site/apt/index.apt.vm
@@ -31,4 +31,4 @@
 
 %{snippet|file=${project.basedir}/target/test-classes/options.html|verbatim=false}
 
-  Either unpack or index with <<<--repository>>> must be used.
+  Either unpack (<<<-u,--unpack>>>) or index (<<<-i,--index>>> and <<<-r,--repository>>>) must be used.