Add additional hero screenshots

Author: lostintangent

README.md

@@ -4,6 +4,18 @@ A web app/PWA for managing and sharing your personal knowledge, daily notes, and
 
 <img width="1933" height="1464" alt="image" src="https://github.com/user-attachments/assets/7ca6a2ba-5c10-43d4-ae29-7316509efb35" />
 
+### Fullscreen share mode
+
+<img width="1933" height="1464" alt="image" src="https://github.com/user-attachments/assets/bf45be29-0060-4def-901d-b1c858ed495f" />
+
+### Gist history + diffs
+
+<img width="1933" height="1464" alt="image" src="https://github.com/user-attachments/assets/3f79df26-9630-4dc5-9bc8-deeb9464edf0" />
+
+### Integrated news dashboard
+
+<img width="1933" height="1464" alt="image" src="https://github.com/user-attachments/assets/8fc2f2aa-0a73-4b9f-ae3a-64c165bdad44" />
+
 ## 📋 Learn more
 
 1. 📓 [GistPad feature overview](https://gh.io/gistpad-features)