update: README

Author: fressive

README.md

@@ -1,17 +1,17 @@
-# Hoshino
-
-<p style="margin: 50px 50px;">
-    <img src=".art/hoshino.svg"/>
+<p align="center">
+    <img src=".art/hoshino.svg" width=800/>
 </p>
 
 
 <p align="center">
+    <br/>
     <img src="https://img.shields.io/github/license/fressive/hoshino" alt="GitHub License"/>
     <img src="https://img.shields.io/github/commit-activity/w/fressive/hoshino" alt="GitHub commit activity"/>
     <img src="https://img.shields.io/github/go-mod/go-version/fressive/hoshino" alt="GitHub go.mod Go version"/>
     <img src="https://img.shields.io/github/actions/workflow/status/fressive/hoshino/go.yml" alt="GitHub Actions Workflow Status"/>
 </p>
 
+# Hoshino
 
 **Hoshino** is a lightweight CTF platform.