For more information read the official setup guide of Hugo.
There is an example site with config file and markdown files in exampleSite directory.
Summary will show follow the post title title in home page.
And if you want to use description property that in post’s fromt matter to instated of post’s content summary, set useDescriptionReplaceSummary = true.
To use the content summary, you may add the summary divider where you want to split the article alternatively. For org content, use # more where you want to split the article. Content that comes before the summary divider will be used as that content’s summary.By default, Hugo automatically takes the first 70 words of your content as its summary. See also https://gohugo.io/content-management/summaries/.
Use the about page to introduce yourself to your visitors. You can customize the content as you like in the /content/about/_index.md.