Outdated inflection examples

[t4k]

https://github.com/arks-org/arks.github.io/blob/45a44f30b35e732b3dbc94d94ed31fe3c5327286/content/_pages/about-ark-features.md?plain=1#L128C1-L152C63

To see inflections in action, visit the following links:

-   <https://texashistory.unt.edu/ark:/67531/metapth346793/>
-   <https://texashistory.unt.edu/ark:/67531/metapth346793/?>
-   <https://texashistory.unt.edu/ark:/67531/metapth346793/??>

Where draft-kunze-ark-41 states

ARK resolvers must support the "?info" inflection for requesting metadata. Older versions of this specification distinguished between two minimal inflections: '?' (brief metadata) and '??' (more metadata). While these older inflections are still reserved, because they have proven hard to recognize in some environments, supporting them is optional.