prepare AppStore release (2)

Author: bigcat88

appinfo/info.xml

@@ -26,6 +26,7 @@ This is not an example, this is a ready-to-use application, just enable the bot
 	<screenshot>https://raw.githubusercontent.com/cloud-py-api/ai_image_generator_bot/main/screenshots/example_2.jpg</screenshot>
 	<screenshot>https://raw.githubusercontent.com/cloud-py-api/ai_image_generator_bot/main/screenshots/example_3.jpg</screenshot>
 	<screenshot>https://raw.githubusercontent.com/cloud-py-api/ai_image_generator_bot/main/screenshots/example_4.jpg</screenshot>
+	<category>multimedia</category>
 	<category>tools</category>
 	<website>https://github.com/cloud-py-api/ai_image_generator_bot</website>
 	<bugs>https://github.com/cloud-py-api/ai_image_generator_bot/issues</bugs>