[docs-scanner] Compression level ranges contradict between overview and exporter pages

[docker-agent]

Files:

• content/manuals/build/exporters/_index.md
• content/manuals/build/exporters/image-registry.md
• content/manuals/build/exporters/oci-docker.md

Issue

The overview page states that different compression algorithms support different compression level ranges:

Use the compression-level=<value> option alongside the compression parameter to choose a compression level for the algorithms which support it:

• 0-9 for gzip and estargz
• 0-22 for zstd

However, the parameter tables in both image-registry.md and oci-docker.md list the compression-level range as simply 0..22 without specifying which algorithms support which ranges:

| compression-level | 0..22 | | Compression level, see [compression][1]

Why this matters

A reader following the parameter tables might try to use compression-level=15 with gzip compression, expecting it to work based on the 0..22 range shown in the table. According to the overview, this should fail or be invalid since gzip only supports 0-9. This contradiction creates confusion about valid parameter values.

Suggested fix

Update the parameter tables in image-registry.md and oci-docker.md to clarify the range:

| compression-level | 0..9 for gzip/estargz, 0..22 for zstd | | Compression level, see [compression][1]

Or alternatively, keep the table simple but ensure the linked compression section in the overview is prominently referenced and clear about the different ranges.

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Found by nightly documentation quality scanner