update README.md

JichouP · JichouP · commit 663c6806db6d · 2022-05-06T06:19:13.000+09:00
diff --git a/README.md b/README.md
@@ -3,3 +3,5 @@
 [![CodeQL](https://github.com/JichouP/Better-traQ/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/JichouP/Better-traQ/actions/workflows/codeql-analysis.yml)
 
 An Extension that Makes traQ Useful
+
+![screenshot](https://raw.githubusercontent.com/JichouP/Better-traQ/master/screenshot/screenshot.png)
