Update README.md

README.md

@@ -49,6 +49,7 @@ Models initially developed in frameworks like PyTorch can be converted to GGUF f
 
 Here are the quantized versions available:
 
+- [x] Q4_K_S 
 - [x] Q4_K_M ~ *Recommended* 
 - [x] Q5_K_M ~ *Recommended* 
 - [x] Q8_0 ~ *NOT Recommended*