Markdown allows you to write in plain text format and then convert it into HTML.
References :
https://docs.github.com/en/github/writing-on-github
https://www.markdownguide.org/basic-syntax/
https://github.com/adam-p/markdown-here/wiki/Markdown-Here-Cheatsheet
https://guides.github.com/features/mastering-markdown/
https://paperhive.org/help/markdown
https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet
https://bulldogjob.com/news/449-how-to-write-a-good-readme-for-your-github-project
https://github.com/matiassingers/awesome-readme
‘thisdavej.com/build-an-amazing-markdown-editor-using-visual-studio-code-and-pandoc/
Github shields:
sites for Online practice –
https://www.markdowntutorial.com/
Other Ref:
https://www.freecodecamp.org/news/how-to-write-a-good-readme-file/
Badge:
Basic writing and formatting syntax: