Add prior Library back in command

guides/common/modules/proc_creating-a-lifecycle-environment-path.adoc

@@ -20,6 +20,7 @@ Then optionally add additional environments to the environment paths.
 $ hammer lifecycle-environment create \
 --name "_My_Lifecycle_Environment_Path_Name_" \
 --description "_Environment Path Description_" \
+--prior "Library" \
 --organization "_My_Organization_"
 ----
 . Optional: To add an environment to the environment path, enter the `hammer lifecycle-environment create` command and specify the parent environment with the `--prior` option: