docs: Small Readme fix (#310)

Author: eirikwitt

README.md

@@ -93,7 +93,7 @@ You can customize the keybindings for inshellisense by adding a `bindings` secti
 ```toml
 [bindings.acceptSuggestion]
 key = "tab"
-# shift and tab are optional and default to false
+# shift and ctrl are optional and default to false
 shift = false
 ctrl = false