update vm customization examples

[mikemorency]

SUMMARY

Updates the vcenter_vm_guest_customization module examples. Adds a missing power on task to the example, and makes it more clear that waiting for vmtools is not required for every workflow.

These changes come from #471

ISSUE TYPE

• Docs Pull Request

COMPONENT NAME

vcenter_vm_guest_customization

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 37.04%. Comparing base (7d23813) to head (7702cfe).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #587   +/-   ##
=======================================
  Coverage   37.04%   37.04%           
=======================================
  Files         145      145           
  Lines       11398    11398           
  Branches     2262     2262           
=======================================
  Hits         4222     4222           
  Misses       7176     7176           

Flag	Coverage Δ
sanity	37.04% <ø> (ø)

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