Support align content in asciidoc document

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I've created an table by asciidoc, but gitlab does not support align content in column.
Sample asciidoc table:

[cols="^4,1"]
|===
|This content is horizontally centered.
|There isn't a horizontal alignment operator on this column's specifier, so the column falls back to the default horizontal alignment.
Content is left-aligned by default.
|===

Reference: https://docs.asciidoctor.org/asciidoc/latest/tables/align-by-column/