Configuration

Include the static TypoScript of the extension.
Customize Fluid Template (e.g. SearchForm.html):

<input type="search" id="ke_search_sword" ... />
<f:asset.css identifier="kesearch-suggest" href="EXT:ke_search_suggest/Resources/Public/Css/autosuggest.css" />
<f:asset.script identifier="kesearch-suggest" src="EXT:ke_search_suggest/Resources/Public/JavaScript/autosuggest.js" />