docs: add sponsors and backers

添加赞助者

Author: yanglbme

.github/FUNDING.yml

@@ -0,0 +1,10 @@
+github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: doocs-leetcode
+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
+otechie: # Replace with a single Otechie username
+custom: # Replace with a single custom sponsorship URL

README.md

@@ -4,9 +4,11 @@
 
 <p align="center">
   <a href="https://github.com/doocs/leetcode"><img src="https://badgen.net/badge/langs/Java,C++,Python,JavaScript,Go,.../green?list=1" alt="languages"></a>
+  <a href="https://opencollective.com/doocs-leetcode/backers/badge.svg" alt="backers on Open Collective"><img src="https://opencollective.com/doocs-leetcode/backers/badge.svg" /></a> 
+  <a href="https://opencollective.com/doocs-leetcode/sponsors/badge.svg" alt="Sponsors on Open Collective"><img src="https://opencollective.com/doocs-leetcode/sponsors/badge.svg" /></a>
+  <a href="https://github.com/doocs/leetcode/blob/master/LICENSE"><img src="https://badgen.net/github/license/doocs/leetcode?color=green" alt="LICENSE"></a><br>
   <a href="https://github.com/doocs/leetcode/stargazers"><img src="https://badgen.net/github/stars/doocs/leetcode" alt="stars"></a>
   <a href="https://github.com/doocs/leetcode/network/members"><img src="https://badgen.net/github/forks/doocs/leetcode" alt="forks"></a>
-  <a href="https://github.com/doocs/leetcode/blob/master/LICENSE"><img src="https://badgen.net/github/license/doocs/leetcode?color=green" alt="LICENSE"></a><br>
   <a href="http://makeapullrequest.com"><img src="https://badgen.net/badge/PRs/welcome/cyan" alt="PRs Welcome"></a>
   <a href="https://doocs.github.io/#/?id=how-to-join"><img src="https://badgen.net/badge/organization/join%20us/cyan" alt="open-source-organization"></a>
 </p>
@@ -58,6 +60,14 @@
 
 <a href="https://opencollective.com/doocs-leetcode/contributors.svg?width=890&button=true"><img src="https://opencollective.com/doocs-leetcode/contributors.svg?width=1200&button=false" /></a>
 
+## 赞助人
+
+<a href="https://opencollective.com/doocs-leetcode#backers" target="_blank"><img src="https://opencollective.com/doocs-leetcode/backers.svg?width=890"></a>
+
+## 赞助商
+
+<a href="https://opencollective.com/doocs-leetcode/sponsor/0/website" target="_blank"><img src="https://opencollective.com/doocs-leetcode/sponsor/0/avatar.svg"></a>
+
 ## 许可证
 
 <a rel="license" href="https://github.com/doocs/leetcode/blob/master/LICENSE"><img alt="Creative Commons License" style="border-width:0" src="./img/cc-by-sa-88x31.png" /></a><br /><a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">知识共享 版权归属-相同方式共享 4.0 国际 公共许可证</a>

README_EN.md

@@ -4,9 +4,11 @@
 
 <p align="center">
   <a href="https://github.com/doocs/leetcode"><img src="https://badgen.net/badge/langs/Java,C++,Python,JavaScript,Go,.../green?list=1" alt="languages"></a>
+  <a href="https://opencollective.com/doocs-leetcode#backers" alt="backers on Open Collective"><img src="https://opencollective.com/doocs-leetcode/backers/badge.svg" /></a> 
+  <a href="https://opencollective.com/doocs-leetcode/sponsors/badge.svg" alt="Sponsors on Open Collective"><img src="https://opencollective.com/doocs-leetcode/sponsors/badge.svg" /></a>
+  <a href="https://github.com/doocs/leetcode/blob/master/LICENSE"><img src="https://badgen.net/github/license/doocs/leetcode?color=green" alt="LICENSE"></a><br>
   <a href="https://github.com/doocs/leetcode/stargazers"><img src="https://badgen.net/github/stars/doocs/leetcode" alt="stars"></a>
   <a href="https://github.com/doocs/leetcode/network/members"><img src="https://badgen.net/github/forks/doocs/leetcode" alt="forks"></a>
-  <a href="https://github.com/doocs/leetcode/blob/master/LICENSE"><img src="https://badgen.net/github/license/doocs/leetcode?color=green" alt="LICENSE"></a><br>
   <a href="http://makeapullrequest.com"><img src="https://badgen.net/badge/PRs/welcome/cyan" alt="PRs Welcome"></a>
   <a href="https://doocs.github.io/#/?id=how-to-join"><img src="https://badgen.net/badge/organization/join%20us/cyan" alt="open-source-organization"></a>
 </p>
@@ -56,6 +58,15 @@ This project exists thanks to all the people who contribute.
 
 <a href="https://opencollective.com/doocs-leetcode/contributors.svg?width=890&button=true"><img src="https://opencollective.com/doocs-leetcode/contributors.svg?width=1200&button=false" /></a>
 
+## Backers
+
+<a href="https://opencollective.com/doocs-leetcode#backers" target="_blank"><img src="https://opencollective.com/doocs-leetcode/backers.svg?width=890"></a>
+
+
+## Sponsors
+
+<a href="https://opencollective.com/doocs-leetcode/sponsor/0/website" target="_blank"><img src="https://opencollective.com/doocs-leetcode/sponsor/0/avatar.svg"></a>
+
 ## License
 
 <a rel="license" href="https://github.com/doocs/leetcode/blob/master/LICENSE"><img alt="Creative Commons License" style="border-width:0" src="./img/cc-by-sa-88x31.png" /></a><br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution-ShareAlike 4.0 International License</a>.