Add sponsor badges/info

Author: Vectorial1024

.github/FUNDING.yml

@@ -0,0 +1,15 @@
+# These are supported funding model platforms
+
+github: [Vectorial1024] # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
+polar: # Replace with a single Polar username
+buy_me_a_coffee: # Replace with a single Buy Me a Coffee username
+thanks_dev: # Replace with a single thanks.dev username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

README.md

@@ -5,6 +5,7 @@
 [![PHP Dependency Version][php-version-image]][packagist-url]
 [![GitHub Actions Workflow Status][php-build-status-image]][github-actions-url]
 [![GitHub Repo Stars][github-stars-image]][github-repo-url]
+[![GitHub Sponsors][github-sponsors-image]][github-sponsors-url]
 
 This is a modern PHP port of the `google/open-location-code` repository. Please visit https://github.com/google/open-location-code for discussion and up-to-date information about **Open Location Code ("OLC", aka "Plus Code")** itself. This repository only concerns the PHP implementation.
 
@@ -139,10 +140,12 @@ composer run-script test
 [packagist-stats-url]: https://packagist.org/packages/vectorial1024/open-location-code-php/stats
 [github-repo-url]: https://github.com/Vectorial1024/open-location-code-php
 [github-actions-url]: https://github.com/Vectorial1024/open-location-code-php/actions/workflows/php.yml
+[github-sponsors-url]: https://github.com/sponsors/Vectorial1024
 
 [packagist-license-image]: https://img.shields.io/packagist/l/vectorial1024/open-location-code-php?style=plastic
 [packagist-version-image]: https://img.shields.io/packagist/v/vectorial1024/open-location-code-php?style=plastic
 [packagist-downloads-image]: https://img.shields.io/packagist/dm/vectorial1024/open-location-code-php?style=plastic
 [php-version-image]: https://img.shields.io/packagist/dependency-v/vectorial1024/open-location-code-php/php?style=plastic&label=PHP
 [php-build-status-image]: https://img.shields.io/github/actions/workflow/status/Vectorial1024/open-location-code-php/php.yml?style=plastic
 [github-stars-image]: https://img.shields.io/github/stars/vectorial1024/open-location-code-php
+[github-sponsors-image]: https://img.shields.io/github/sponsors/Vectorial1024?style=plastic