Fix doc issues with slices

[jotak]

• Mention "EXT:" prefix in slices
• Mention "EXT:" prefix in label names
• Fix bad copy-paste of FlowMetric within Slices doc

Regenerate docs

cc @gwynnemonahan

[openshift-ci]

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[jotak]

/cherry-pick release-1.11

[openshift-cherrypick-robot]

@jotak: once the present PR merges, I will cherry-pick it on top of release-1.11 in a new PR and assign it to you.

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In response to this:

/cherry-pick release-1.11

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[gwynnemonahan]

Thank you!

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 72.20%. Comparing base (e93240b) to head (d5a6b4c).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2444      +/-   ##
==========================================
+ Coverage   72.18%   72.20%   +0.01%     
==========================================
  Files         104      104              
  Lines       10619    10619              
==========================================
+ Hits         7665     7667       +2     
  Misses       2478     2478              
+ Partials      476      474       -2     

Flag	Coverage Δ
unittests	72.20% <ø> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
api/flowcollector/v1beta2/flowcollector_types.go	100.00% <ø> (ø)
...ollectorslice/v1alpha1/flowcollectorslice_types.go	100.00% <ø> (ø)

... and 4 files with indirect coverage changes

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[gwynnemonahan]

LGTM

[openshift-cherrypick-robot]

@jotak: new pull request created: #2448

Details

In response to this:

/cherry-pick release-1.11

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.