It's very easy, Login your linked-In page and go to the "add profile sections" or About section for Featured, then you can find some sections like links, document, article and more. But I will give you four tips to follow:
1️ Add media, links, articles and posts
2️ Use media that addresses your audience’s Point of Pain
3️ Delete non-relevant media
4 Arrange media in the order YOU want people to see
Give a try and Adjust your brand more professional.
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