update README.md

RuoYi

2021-02-02 716405d22b5311a9ea26eeaffef8f55058e12aac

 ruoyi-auth/src/main/java/com/ruoyi/auth/controller/TokenController.java

@@ -58,7 +58,8 @@
        if (StringUtils.isNotNull(loginUser))

        {

            // 刷新令牌有效期

            return R.ok(tokenService.refreshToken(loginUser));

            tokenService.refreshToken(loginUser);

            return R.ok();

        }

        return R.ok();

    }