update doc

Author: jcs090218

README.md

@@ -90,8 +90,8 @@ List of supported commands,
 
 #### 🧪 Variables
 
-* `codegpt-max-tokens` - The maximum number of tokens to generate in the completion.
-* `codegpt-temperature` - What sampling temperature to use.
+- `codegpt-max-tokens` - The maximum number of tokens to generate in the completion.
+- `codegpt-temperature` - What sampling temperature to use.
 
 ## Contribute