doc: Add screenshot to README.md

Author: hacker1024

README.md

@@ -2,4 +2,6 @@
 A tool to decrypt Pandora JSON API request and responses.
 
 Available online at https://crypto.epimetheus.tk.
-See the releases page for native apps.
+See the releases page for native apps.
+
+![image](https://user-images.githubusercontent.com/20849728/124232964-ad3b9b80-db55-11eb-9290-c3dbd956a5d9.png)