Add the Knowledge Search Component
You can add knowledge to a page by activating a sandbox and using page composer.
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            Open the page you want to edit, and click Edit Pages in the Settings and Actions menu. 
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            Follow the appropriate Edit Pages visibility instructions, then click OK. The page will display one or more Add Content buttons, or a ribbon with Add Content, Select, and Structure tabs. 
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            Click the Add Content button, or click the Structure tab and the location where you want to add the Knowledge widget. 
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            Click Edit, then click the + icon. 
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            Click Application Content, then click the + link for the Knowledge component.