Card: metadata v2.2.1 tag

README.md

@@ -248,10 +248,10 @@ catalog has no per-sample license column. See the
 reuse terms and citation, and cite the original studies with the data you use (`sda-db cite` writes BibTeX for
 a selection).
 
-## Curated sample metadata v2 (version 2.2, 2026-11-06)
+## Curated sample metadata v2 (version 2.2.1, 2026-11-06)
 
 `metadata/v2/` adds a curated table on top of the same 12,163 samples. No data file changed: the paper release is
-still tag `v1.0.0-20261025`; the current metadata is tag `metadata-v2.2-20261106`.
+still tag `v1.0.0-20261025`; the current metadata is tag `metadata-v2.2.1-20261106`.
 
 - `samples_metadata_v2.parquet` / `.csv` has one row per sample:
   - organ (43 sites);