docs(repos): use a non-default page size in the pagination example

--page-limit 15 equalled the default, making the flag look like a no-op;
use 25 (matching the sibling commands' examples) so the flag's effect is
clear, and update the comment to match.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011Kh9pJ2yQbnUPhytgtPSzv

Author: claude

cmd/kosli/listRepos.go

@@ -39,9 +39,9 @@ kosli list repos \
 	--org yourOrgName \
 	--output json
 
-# show the second page of repos (15 per page):
+# show the second page of repos (25 per page):
 kosli list repos \
-	--page-limit 15 \
+	--page-limit 25 \
 	--page 2 \
 	--api-token yourAPIToken \
 	--org yourOrgName