Update readme.md

readme.md

@@ -287,7 +287,7 @@ Default: `true`
 
 Buffer the output from the spawned process. When buffering is disabled you must consume the output of the `stdout` and `stderr` streams because the promise will not be resolved/rejected until they have completed.
 
-If the spawned process fails, [`error.stdout`](#stdout), [`error.stderr`](#stderr) and [`error.all`](#all) will contain the buffered data.
+If the spawned process fails, [`error.stdout`](#stdout), [`error.stderr`](#stderr), and [`error.all`](#all) will contain the buffered data.
 
 #### input