Publish joplin Markdown or HTML to GitHub website?

Is there a way to do it? I currently upload my html files to blogspot directly. but I would like to put them organized in github. There are images and that's a huge pain in the ass. If there were no images, I'd just use the normal markdown format and all good. I don't want to host images online where there is no guarentee that they will be saved forever. I've heard good things about astro js and stuffs. What'd be the best astrojs theme if I want my website to look like cloudflare's blog posts? I dunno how to code beautiful websites. Although I know how to code. Like how should I work? I mean I want to just upload the md from joplin to a certain directory and want to see it published. Is there a good way to do this?