fix: 헤더 로고 변경 및 README 링크 업데이트

Author: anveloper

README.md

@@ -12,7 +12,7 @@
     </tr>
     <tr>
         <th>배포</th>
-        <td><a href="#">🛠️simple thumbnail🛠️</a></td>
+        <td><a href="https://simple-thumbnail.com/">🛠️simple thumbnail🛠️</a></td>
     </tr>
     <tr>
         <th>디자인</th>
@@ -49,7 +49,7 @@
 ## 📌 Getting Start
 
 ```shell
-git clone 'https://github.com/Yangjaecheon-Otter-Guardians/simple-thumbnail.git'
+git clone 'https://github.com/yangjaecheon-otter-guardians/simple-thumbnail.git'
 npm install
 npm start
 ```
@@ -81,7 +81,7 @@ npm start
 - react-helmet-async
     - HTML의 head 태그를 관리하기 위한 라이브러리입니다.
 
-[package.json 바로가기](https://github.com/Yangjaecheon-Otter-Guardians/simple-thumbnail/blob/main/frontend/package.json)
+[package.json 바로가기](https://github.com/yangjaecheon-otter-guardians/simple-thumbnail/blob/main/frontend/package.json)
 
 <br />
 

frontend/src/assets/big_logo.svg

@@ -1,13 +1,13 @@
-import github from '../assets/github.svg';
 import { ReactComponent as TEXT_LOGO } from 'assets/logo_default.svg';
+import github from '../assets/github.svg';
 
 function Footer() {
   return (
     <div className="w-full flex-center py-[25px] text-disabled text-[12px]">
       <div className="w-full px-5 flex flex-col items-center tablet:w-[768px] tablet:px-10">
         <TEXT_LOGO style={{ height: '32px' }} />
         <span>© 2023 Simple Thumbnail all rights reserved.</span>
-        <a href="https://github.com/Yangjaecheon-Otter-Guardians/simple-thumbnail" target="_blank">
+        <a href="https://github.com/yangjaecheon-otter-guardians/simple-thumbnail" target="_blank">
           <div className="flex-center gap-1 font-bold">
             <img src={github} alt="github icon" width="16rem" />
             <span>simple-thumbnail</span>

frontend/src/sections/Footer.tsx

@@ -1,4 +1,4 @@
-import { ReactComponent as TEXT_LOGO } from 'assets/logo_black.svg';
+import { ReactComponent as TEXT_LOGO } from 'assets/big_logo.svg';
 
 function Header() {
   const handleInitial = () => {