Updated Platform install internals readme

Change-Id: Ia48cba20ce7303b7bf39dfa597379b33e8145038
diff --git a/PLATFORM_INSTALL_INTERNALS.md b/PLATFORM_INSTALL_INTERNALS.md
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--- a/PLATFORM_INSTALL_INTERNALS.md
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 ## Helpful log files and diagnostic information
 
-The xos-build and xos-onboard steps run ansible playbooks to setup the xos virtual machine. The output of these playbooks is stored in the files `service-profile/cord-pod/xos-build.out` and `service-profile/cord-pod/xos-onboard.out` respectively.
+The xos-build and xos-onboard steps run ansible playbooks to setup the xos virtual machine. The output of these playbooks is stored (inside the `xos-1` VM) in the files `service-profile/cord-pod/xos-build.out` and `service-profile/cord-pod/xos-onboard.out` respectively.