Setting topic on channel

Author: hhariri

pages/community/slackccugl.md

@@ -45,7 +45,7 @@ There are over 8000 users on many different timezones using the Kotlin Slack and
 * This Slack is not an official support channel. It is a place where the community hang out along with some members of the JetBrains/Kotlin team (suffix [JB]). For official support, please use the Kotlin Forums, where messages are also persisted.
 * This Slack is not the best place for reporting bugs either. For this, please use YouTrack.  
 * Find the right channel to ask your question. There are channels for pretty much every topic. For a list of some of the channels see below.
-* New channels should be focused around a well-known technology or area of interest. Create them sparingly. And before creating a new channel, make sure it doesn’t exist in any other shape or form. 
+* New channels should be focused around a well-known technology or area of interest. Create them sparingly. And before creating a new channel, make sure it doesn’t exist in any other shape or form. If you do end up creating a channel, make sure you set the topic. 
 * When you ask a question, please be patient. Don’t repeat it. Or at least not immediately.
 * Don’t split messages into multiple ones. Ask it all in a single message.
 * Use code blocks. Don’t paste code as plain text. Slack supports Kotlin markup.