Update README.md

README.md

@@ -5,4 +5,6 @@ license: apache-2.0
 
 **BERTić-Tweet-Base** is an additionally pretrained version of the [BERTić](https://huggingface.co/classla/bcms-bertic), an ELECTRA-based language model, tailored specifically for the social media domain. The model has been pretrained using 37,200 COVID-19 vaccination-related tweets in the Serbian language (approximately 1.3 million tokens), leveraging the unique linguistic features and informal writing styles prevalent on social media platforms.
 
-Its fine-tuned version for the **five-class sentiment analysis task** is available as [BERTić-Tweet](https://huggingface.co/DarijaM/BERTic-Tweet).  
+Its fine-tuned version for the **five-class sentiment analysis task** is available as [BERTić-Tweet](https://huggingface.co/DarijaM/BERTic-Tweet).
+
+This model builds upon the original BERTić model, which is licensed under the Apache 2.0 license.