Update README.md

README.md

@@ -23,7 +23,7 @@ nasa-smd-ibm-v0.1 is a RoBERTa-based, Encoder-only transformer model, domain-ada
 - Wikipedia English (Feb 1, 2020)
 - AGU Publications
 - AMS Publications
-- Scientific papers (NASA Earth Science, Astrophysics)
+- Scientific papers from Astrophysics Data Systems
 - PubMed abstracts
 - PMC (commercial license subset)