Update sponsorship info

SPONSORS.json

@@ -168,5 +168,15 @@
                 "url": "https://cdn.discordapp.com/icons/1172553254882775111/648d5bc50393a21216527a1aaa61286d.webp"
             }
         }
+    },
+    {
+        "embeds": {
+            "title": "Pixelmark TM PLC",
+            "description": "Hi there! Welcome to PixelMark PLC! \nI'm so glad you're here. I started PixelMark PLC on May 24, 2023. Our team is dedicated to providing top-quality products and a great shopping experience. But more than that, PixelMark PLC is a community. We're here to share, create, and have fun together. Thanks for joining us on this exciting journey! Our current Goal is to reach 100 Human Members, you can help us achieve that Goal by joining or/and inviting your Friends!\n\nBest regards, \n*Felixpro202110 / Chief Executive Officer (Founder)* \n-----------------------------------------------------------------------\n> https://discord.gg/RVzNVRaFeE\n> https://www.roblox.com/groups/16031525/PixelMark-PLC",
+            "color": 10634504,
+            "image": {
+                "url": "https://imgur.com/iTl1dXm.png"
+            }
+        }
     }
 ]