Add end-of-file acknowledgements for sponsors, developers, and LinuxDo community

README updates now place a unified acknowledgement section near the end (before License) in both English and Chinese, explicitly thanking sponsors, developers/contributors, and the LinuxDo community with a neutral non-endorsement disclaimer.

Constraint: Keep existing sponsor/developer showcase blocks intact while adding final acknowledgement wording

Rejected: Put acknowledgement near top profile blocks | user requested end-of-file placement

Confidence: high

Scope-risk: narrow

Directive: Keep acknowledgement wording neutral and avoid implying official affiliation

Tested: Manual README markdown diff review

Not-tested: Render preview in GitHub UI

README.md

@@ -274,6 +274,16 @@ Planned but not yet shipped:
 - Verify on a clean macOS box: permission flow, hotkey, recording, ASR, polish, insertion, clipboard fallback.
 - Push a `v<version>-tauri` tag — CI builds + signs the updater artifacts and the macOS `.dmg` + Windows `.msi`. The updater needs `TAURI_SIGNING_PRIVATE_KEY` repo secret (matching the pubkey in `tauri.conf.json`).
 
+## Acknowledgements
+
+OpenLess sincerely thanks our sponsors, developers/contributors, and the broader LinuxDo community.
+
+We appreciate sponsors for making sustained project work possible, and we thank developers and contributors for building, reviewing, and improving OpenLess.
+
+OpenLess also recognizes and appreciates the LinuxDo community for its open, practical, and developer-friendly atmosphere. Many ideas, discussions, and early feedback around OpenLess were inspired by the broader open-source spirit represented by LinuxDo.
+
+This acknowledgement does not imply official endorsement or affiliation.
+
 ## License
 
 MIT

README.zh.md

@@ -281,6 +281,16 @@ commands.rs      Tauri IPC 接口
 - 在干净 macOS 机器上验证：权限引导、快捷键、录音、ASR、润色、插入、剪贴板兜底。
 - 推送 `v<version>-tauri` tag → CI 构建并签名 updater artifact + macOS `.dmg` + Windows `.msi`。需要 repo secret `TAURI_SIGNING_PRIVATE_KEY`（对应 `tauri.conf.json` 中的 pubkey）才能签名 updater 包。
 
+## 致谢
+
+OpenLess 在此真诚感谢三类群体：赞助者、开发者/贡献者，以及 LinuxDo 社区。
+
+感谢赞助者对项目持续推进的支持；感谢开发者和贡献者在开发、评审与改进中的长期投入。
+
+OpenLess 也认可并感谢 LinuxDo 社区开放、务实、对开发者友好的氛围。OpenLess 的许多想法、讨论和早期反馈，都受到了 LinuxDo 所代表的开源交流精神的启发。
+
+此致谢不代表官方背书或隶属关系。
+
 ## 许可
 
 MIT