Update README.md

README.md

@@ -67,12 +67,12 @@ First, what is a **sketch**? As defined in our paper, a sketch is "key informati
 
 The sketch which can be composed of:
 
-- keywords /key-phrases, like `__NLP__AI__computer__science__`
+- keywords /key-phrases, like "`__NLP__AI__computer__science__`"
 - spans, like `Conference on Empirical Methods__submission of research papers__`
 - sentences, like `I really like machine learning__I work at Google since last year__`
 - or a mixup!
 
-(`__` is the mask token. Use `<mask>` for English, and `[MASK]` for Chinese)
+
 
 ### How to use the model
 #### 1. If you already have a sketch in mind, and want to get a paragraph based on it...