feat: add square SmartyKit PCB preview

Single-board PCB/README.md

@@ -8,7 +8,20 @@ SmartyKit One (http://www.smartykit.io/), Apple-1 compatible computer's PCB prod
 
 These particular files were successfully used with JLCPCB.
 
-![SmartyKit One PCB Preview](./SmartyKitPCB-3D-preview.png)
+This board is quite popular having almost 1 million views on TikTok: https://vt.tiktok.com/ZSN6fEfT1/
+
+Short demo on how it works: https://youtube.com/shorts/yasQL7dERKI?si=belrGXeBrC0KbUY7
+
+Then you can decorate your office or WFH study in a geeky way: https://www.instagram.com/p/CnwZLHJIJ2m/?igshid=MzRlODBiNWFlZA==
+
+SmartyKit Discord community could be helpful during the build. 
+
+![SmartyKit One PCB Preview](./SmartyKitPCB-preview.jpg)
+
+## Video instruction on ordering from JLCPCB
+
+[![Watch video instruction on ordering from JLCPCB](https://img.youtube.com/vi/eLBNkHj5aZs/maxresdefault.jpg)](https://www.youtube.com/watch?v=eLBNkHj5aZs)
+
 
 ## LED part number