Sync ekko-pnc model card and cover

README.md

@@ -139,8 +139,9 @@ not expected to be byte-identical.
 
 RyeAI's contribution is released under
 [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) and is derived from
-`jonfd/electra-small-nordic`. Training used preserved Danish text and
-audio-aligned transcripts; applicable source-corpus notices must accompany the
-release.
+`jonfd/electra-small-nordic`. The retained PnC lineage used Danish Wikipedia for
+text pretraining, followed by NST-da, CoRal, and FT Speech transcript text. Nota
+was not part of this model's retained training lineage. Applicable source-corpus
+notices must accompany the release.
 The complete distribution is governed by the composite terms in
 [`MODEL_LICENSE.md`](MODEL_LICENSE.md).