conf: cname、change website name

Author: LetMeFly666

ToCopy/_config.yml

@@ -3,18 +3,18 @@
 ## Source: https://github.com/hexojs/hexo/
 
 # Site
-title: LetMeFly的LeetCode题解等博客
+title: Tisfy的LeetCode题解等博客
 subtitle: 'LetLeet'
 description: LeetCode 题解、解题技巧 力扣题解 技术博客
 keywords:
-author: LetMeFly
+author: Tisfy
 language: zh-CN
 timezone: Asia/Shanghai
 email: [email protected]
 
 # URL
 ## Set your site url here. For example, if you use GitHub Page, set url as 'https://username.github.io/project'
-url: https://blog.tisfy.eu.org/
+url: https://blog.letmefly.xyz/
 permalink: :year/:month/:day/:title/
 permalink_defaults:
 pretty_urls: