Include logo for randomizer topic

Add logo field to randomizer topic metadata

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

Author: piratabrasileiro1

topics/randomizer/index.md

@@ -3,6 +3,7 @@ display_name: Randomizer
 short_description: Randomizer is a type of tool that uses stochastic inputs.
 aliases: video-game-randomizer,randomizer-tool,randomizer-mod
 related: modding,rom-hacking
+logo: randomizer.png
 topic: randomizer
 ---
-Randomizer is a type of tool that uses unpredictable or stochastic inputs as part of software development.
+Randomizer is a type of tool that uses unpredictable or stochastic inputs as part of software development.