Knowledge articles are documents that provide information or solutions about products, services, or processes in Salesforce. You can use knowledge articles to respond to customers quickly and consistently with accurate information. You can create different types of articles with different templates and fields, such as FAQ articles, troubleshooting articles, how-to articles, etc. To meet the requirement of responding to customers with the top five troubleshooting tips that could help solve their issue, you need to create knowledge articles with those tips and attach them to your email responses or case comments. References: https://help.salesforce.
com/s/articleView?id=sf.knowledge_article_types.htm&type=5