What are the ways to organize the infrequent addition of news to the site?

Question

CMS

I'm making a small business card site using only HTML, CSS, Bootstrap and a bit of jQuery.
There are 2 small blocks with news and offers. They will not be edited very often.
The question is how then, without my participation, to add news to the site?

Answer 1

- use php ruby ​​phyton
- use cms
- use static site generator

Answer 2

Stupid way in the forehead. Read news, for example, from a .txt file, which can be stupidly edited by the client and uploaded to the site. But still it is better to install the simplest free CMS like Wordpress.

Answer 3

Take files from the txt directory in a certain format.
textcms.ru does this, for example