Update: GitHub now has a tab size setting: https://github.blog/changelog/2021-09-21-tab-size-rendering-preference/ By default, in browsers, the tab character takes up 8 spaces in width. This makes tab-indented code hard to read. GitHub could have easily overridden this with a more reasonable number like 4, but they have chosen not to. Hence why this extension exists. It sets the tab width to 4.
You can Follow the below Step By Step procedure to install the Tab Size on GitHub Chrome Extension to your Chrome Web browser.
It is the Tab Size on GitHub Chrome extension download link you can download and install Chrome Browser.
Opens the corresponding repository from a GitHub Page
EditorConfig support for GitHub
Chrome extension that improves the GitHub experience
Simplifies the GitHub interface and adds useful features
Twitter handles for GitHub
Highlight selected word in GitHub source view like Sublime Text
This extension applies various tweaks to the github pull-request code review pages.
Hide nonessential files from the file browser