update readme

README.md

@@ -43,7 +43,7 @@ model-index:
 
 A compact RoBERTa-style **Masked Language Model (MLM)** for Persian (Farsi).
 We trained a Persian BPE tokenizer on a mixed corpus combining formal text with social-media and chat data.
-The model is pre-trained with a BPE tokenizer optimized for Persian script and evaluated on two downstream tasks:
+The model is pre-trained with this tokenizer, optimized for Persian script and evaluated on two downstream tasks:
 
 - **NER** on a **merged ARMAN + PEYMA** corpus  
 - **Relation Extraction** on **PERLEX**