Add base model link

README.md

@@ -10,7 +10,8 @@ datasets:
 
 # Twitter 2022 154M (RoBERTa-large, 154M - full update)
 
-This is a RoBERTa-large model trained on 154M tweets until the end of December 2022 (from original checkpoint, no incremental updates).
+This is a RoBERTa-large model trained on 154M tweets until the end of December 2022 (from original checkpoint, no incremental updates). 
+A base model trained on the same datais available [here](https://huggingface.co/cardiffnlp/twitter-roberta-base-2022-154m).
 
 These 154M tweets result from filtering 220M tweets obtained exclusively from the Twitter Academic API, covering every month between 2018-01 and 2022-12.
 Filtering and preprocessing details are available in the [TimeLMs paper](https://arxiv.org/abs/2202.03829).