Github: 4 ways to subscribe to pull requests

The text provides four methods for subscribing to Pull Requests (PRs) on GitHub, depending on user preferences. These include setting up email notifications by adjusting settings at https://github.com/settings/notifications and customizing further using the GitHub documentation; enabling mobile notifications through downloading and signing in to the GitHub app from https://github.com/mobile and adjusting settings at https://github.com/settings/notifications; subscribing via Slack by installing the official Slack GitHub integration or using Axolo for bidirectional integration that opens a dedicated channel per PR, invites relevant team members, and uses emojis to indicate PR status; and finally, an unspecified fifth method mentioned in a separate article.