I made a description

I made a description in getting started with Github Pages Course. I completed it but Github bot is tellling that they had found an error in my config.yml file. I just can’t understand the error. Please tell me what error I have made. I am giving the code below. Btw I am a newbie in Github so I don’t know anything so please help me.
The code:
title: My School Life
author: Subhranil Banerjee
email: [Sensitive information removed by Moderator]
description: > Hi friends my name is Subhranil Banerjee. Welcome to this site.
I will tell about my journey in my school. So come to this site now.

social links

twitter_username: [Sensitive information removed by Moderator]
github_username: subhranil0663
show_excerpts: true # set to false to remove excerpts on the homepage
theme: minima

Hi @subhranil0663, welcome to the GitHub Support Community!

It’s been a while since you posted this. Are you still having trouble or have you managed to figure it out?

If you’re still having trouble, would you be able to post a link to your repository where you’re having this issue? YAML relies on whitespace so it’s difficult to tell if there’s an issue with your formatting when you post it in here.