Update doc/api/fs.md

doc/api/fs.md

@@ -3204,7 +3204,7 @@ The optional `options` argument can be an integer specifying `mode` (permission
 and sticky bits), or an object with a `mode` property and a `recursive`
 property indicating whether parent directories should be created. Calling
 `fs.mkdir()` when `path` is a directory that exists results in an error only
-when `recursive` is false. If `recursive` is false and  the directory exists,
+when `recursive` is false. If `recursive` is false and the directory exists,
 an `EEXIST` error occurs.
 
 ```mjs