Fix error in compute gallery docs

[mboersma]

What type of PR is this?

/kind documentation

What this PR does / why we need it:

Fixes some mistakenly swapped fields in the docs for the Compute Gallery example.

Which issue(s) this PR fixes:

Fixes #5348

Special notes for your reviewer:

TODOs:

• squashed commits
• includes documentation
• adds unit tests
• cherry-pick candidate

Release note:

NONE

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.43%. Comparing base (c10397e) to head (2f62bb6).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5361   +/-   ##
=======================================
  Coverage   52.43%   52.43%           
=======================================
  Files         272      272           
  Lines       29401    29401           
=======================================
+ Hits        15415    15417    +2     
+ Misses      13180    13178    -2     
  Partials      806      806           

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[jackfrancis]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 81cf5d2519c1186f55521b1ca5324c3da3cd2194

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jackfrancis

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