Added the Paypay Corporation for Hacktoberfest 2024.

[hn-agnihotri29]

This is a modified version of, and should adhere to, the Contributing Guidelines.

• This PR contains housekeeping only (URL edits, copy changes etc) - if this is checked, delete other lines that don't apply
• You are an employee of the company mentioned and confirm all included details are correct.
• You know your alphabet - company is listed in alphabetical order in the README.md file.
• The company directly hires employees. ** No bootcamps / freelance sites / etc**
• The company hires remote employees, or positions are available to remote workers and are clearly illustrated as such.
• A company profile is included - This is required for new additions.
• An entry has been added or edited within the readme.md file.
• Remote status has details regarding how the culture includes remote employees, how the company integrated remote workers, etc
• Region details the geographic regions in which this company employees can reside. For more details see the instructions in the example company profile.
• How to apply details the best approach for new applications, page on site where open position are listed, and any other help available for job hunters

[hn-agnihotri29]

@Ki-er, I believe the PR is ready for review, and I'm awaiting the approval for the pending workflows. Please let me know if any further changes are needed. I look forward to your feedback.

[dougaitken]

@hn-agnihotri29 please choose either Japan or Worldwide for region on both the readme and company profile. Thanks