This is the easiest method to deploy your Angular app on the web using github. GitHub Pages lets you host static websites for free.
First Download git setup from : https://git-scm.com/download
then follow my video

publish app link https://rinkuchoudhary226.github.io/deploymydemoapp/
Github link for the project https://github.com/RinkuChoudhary226/deploymydemoapp

like my facebook page https://www.facebook.com/rctechrinku/app/212104595551052/