chore: update README

Author: cutedaffodil

README.md

@@ -1,10 +1,26 @@
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fflickr-downloadr%2Fflickr-downloadr.github.io.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fflickr-downloadr%2Fflickr-downloadr.github.io?ref=badge_shield)
 
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+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
+[![All Contributors](https://img.shields.io/badge/all_contributors-13-orange.svg?style=flat-square)](#contributors)
+<!-- ALL-CONTRIBUTORS-BADGE:END -->
+
 flickr-downloadr.github.io
 ==========================
 
 Source files for [flickrdownloadr.com](https://flickrdownloadr.com) that is hosted on GitHub Pages
 
 
 ## License
-[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fflickr-downloadr%2Fflickr-downloadr.github.io.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fflickr-downloadr%2Fflickr-downloadr.github.io?ref=badge_large)
+[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fflickr-downloadr%2Fflickr-downloadr.github.io.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fflickr-downloadr%2Fflickr-downloadr.github.io?ref=badge_large)
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+## Contributors
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
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+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
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+<!-- ALL-CONTRIBUTORS-LIST:END -->