I have a project in typescript/Angular (BE in C# + SQL server).
I need to create the site’s manual/helper.

It will look like a list of topics (titles + subtitles) and when pressing the topic, a text and images will appear on the other side. I also need to have a search button that will give me a list of all files that contains that search word.

What would you suggest? static HTML files saved on the project? saving in DB? any idea?
And also I cannot use google libraries as the site runs on private network.

Thanks!