I want to display some information in customer portal

Hi @Priyadarshini R 

Welcome to the Atlassian community!

You can achieve this in a couple of ways:

1. If you want to display the information in a specific JSM portal, you can configure the portal introduction text:
   Space settings -> Channels & Self service -> Portal -> Introduction text
   
   
2. If you want to display the information across the entire Help Center, you can create an announcement
   Help center -> Customize -> Manage announcement -> Add title & Message -> Save changes
   
   

Cheers!

Hi @Priyadarshini R 

@Lalithesh Channu is providing goof options.

If you have Confluence your cloud link a space with knowledge articles.

knowledge-management - how-it-works