cleaned up inventory file
diff --git a/README.md b/README.md
index 499efdf..4f3c883 100644
--- a/README.md
+++ b/README.md
@@ -24,9 +24,9 @@
 | Tag Name | Description |
 | --- | --- |
 | cache | Updates the local Ansible cache with OPDK variables that are used for the generation of configuration files. |
-| os | Prepares the operating system for the installation of OPDK |
+| os | Prepares the operating system for the installation of OPDK. This covers operating system packages and updates to system configuration files. |
 | bootstrap | Install the Apigee bootstrap. This adapts to either [online](https://docs.apigee.com/private-cloud/v4.18.01/install-edge-apigee-setup-utility#installedgeapigeesetuputilityonanodewithanexternalinternetconnection) or [offline](https://docs.apigee.com/private-cloud/v4.18.01/install-edge-apigee-setup-utility#installedgeapigeesetuputilityonanodewithnoexternalinternetconnection) |
-| common | Install common Apigee components used on all nodes |
+| common | Install common Apigee components used on all nodes, does not include operating system packages |
 | config | Generate the [Edge Configuration File](https://docs.apigee.com/private-cloud/v4.18.01/edge-configuration-file-reference) |
 | ds | Install the [ds](https://docs.apigee.com/private-cloud/v4.18.01/install-edge-components-node#specifyingthecomponentstoinstall) profile | 
 | ms | Install the [ms](https://docs.apigee.com/private-cloud/v4.18.01/install-edge-components-node#specifyingthecomponentstoinstall) profile |