update number of papers in readme file

README.md

@@ -1,4 +1,4 @@
-This model is further trained on top of scibert-base using masked language modeling loss (MLM). The corpus is roughly 100,000 earth science-based publications.
+This model is further trained on top of scibert-base using masked language modeling loss (MLM). The corpus is roughly 270,000 earth science-based publications.
 
 The tokenizer used is AutoTokenizer, which is trained on the same corpus.
 
@@ -7,4 +7,4 @@ Stay tuned for further downstream task tests and updates to the model.
 in the works
 - MLM + NSP task loss
 - Add more data sources for training
-- Test using downstream tasks
+- Test using downstream tasks