Parity: titles and the PDF/X row say only what is implemented (#6300)

* Parity: titles and the PDF/X row say only what is implemented

* Parity: the PDF/X row says removal matches the pdfxid: prefix only

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: eliets2 <287273517+eliets2@users.noreply.github.com>
Co-authored-by: FredApps <153173854+FredApps@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

parity/acrobat-features.toml

@@ -7996,7 +7996,7 @@ notes = ""
 
 [[feature]]
 id = "optimize.pdfa-validate"
-title = "Verify PDF/A compliance (1-4)"
+title = "Verify PDF/A compliance (2b and 3b so far; 1, 2a, 2u, 3a, 3u, 4 not yet)"
 area = "K"
 tier = "P1"
 milestone = "M11"
@@ -8008,7 +8008,7 @@ notes = "PDF/A-2b/3b structural rules: identification, encryption, output intent
 
 [[feature]]
 id = "optimize.pdfa-convert"
-title = "Save as PDF/A (1b, 2b, 3b, 4)"
+title = "Save as PDF/A (2b and 3b so far)"
 area = "K"
 tier = "P1"
 milestone = "M11"