Update Newgrounds topic with related games and logo

Added 'games' to the related topics and included a logo.

Signed-off-by: Gabriel Lima Lopes <135924740+piratabrasileiro1@users.noreply.github.com>

Author: piratabrasileiro1

topics/newgrounds/index.md

@@ -2,7 +2,8 @@
 aliases: newgrounds-io,newgrounds-player,new-grounds
 display_name: Newgrounds
 short_description: newgrounds is a user-generated website created in 1995 by tom fulp to publish games and animations
-related: adobe-flash,ruffle,
+related: adobe-flash,ruffle,games
+logo: newgrounds.png
 topic: newgrounds
 ---
-newgrounds is a user-generated website created in 1995 by tom fulp to publish games and animations
+newgrounds is a user-generated website created in 1995 by tom fulp to publish games and animations