To Link to Blog Categories:

1. Select your text box in the design.
2. Go to the "Click Actions" tab on the right. 
3. Set to link to URL including your domain
4. Type in the URL field as "https://yourdomain.com/category/whatever-the-category-slug-is/"
To determine the category slug: Log in to your WordPress Admin and going to the Posts > Categories section. Next to each category in the list will be its category slug which is used for linking to the specific category of posts.

If your category is Weddings: https://yourdomain.com/category/weddings
If your category is Moves Like Jagger: https://yourdomain.com/category/moves-like-jagger
Replace "yourdomain.com" with your own domain when adding in the link