update: KTL-1748 Update kotlin-brand-assets.md (#4563)

update: update Kotlin brand assets KTL-1748

docs/topics/kotlin-brand-assets.md

@@ -23,6 +23,8 @@ Pay special attention to the following restrictions concerning the use of the lo
 * Do not change the text.
 * Do not set the logo against a complex background. Do not place the logo in front of a bright background.
 
+[Read the Kotlin brand usage guidelines](https://kotlinfoundation.org/guidelines/).
+
 ## Kotlin mascot
 
 Kodee is Kotlin's reimagined mascot. More than just a symbol, Kodee is your friendly companion who’s there to encourage 
@@ -145,4 +147,4 @@ Or you can provide a board where your guests can paste stickers with their impre
 Guests of the event are offered to paste stickers on the board with their impressions of the meeting. 
 What does it mean to you?
 
-![Sticker pack](kotlin-night-t-shirt.svg){width=700}
+![Sticker pack](kotlin-night-t-shirt.svg){width=700}