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

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please ask for approval from mboersma. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.43%. Comparing base (c10397e) to head (2f62bb6).

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           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.