doc: fix typo in REPL docs

PR-URL: #18404
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/repl.md

@@ -381,7 +381,7 @@ within the action function for commands registered using the
 added: v9.0.0
 -->
 
-The `replServer.clearBufferedComand()` method clears any command that has been
+The `replServer.clearBufferedCommand()` method clears any command that has been
 buffered but not yet executed. This method is primarily intended to be
 called from within the action function for commands registered using the
 `replServer.defineCommand()` method.