add link and task

Author: liberhe

README.md

@@ -149,6 +149,7 @@ DAPP架构请参考文章--[从架构维度看Web2.0与Web3.0应用之别](https
 62. [Referral Code](https://developers.thundercore.com/docs/referral-contract/) ⬜
 63. [HTLC-crosschain](https://yuanxuxu.com/2020/08/05/%E5%8C%BA%E5%9D%97%E9%93%BE%E8%B7%A8%E9%93%BE%E6%8A%80%E6%9C%AF%E4%B9%8B%E5%93%88%E5%B8%8C%E6%97%B6%E9%97%B4%E9%94%81/) ⬜
 64. [Web3-Rust](https://github.com/tomusdrw/rust-web3) ⬜ 
+65. [ZK-NFT](https://github.com/kevinz917/zk-NFT) ✅
 
 欢迎提交 PR，[添加新的基础任务或者更新上面的任务](https://github.com/rebase-network/Dapp-Learning/issues/new)
 

docs/books.md

@@ -10,7 +10,7 @@
 - [《货币未来》](https://book.douban.com/subject/35178904/)
 - [《历代经济变革得失》](https://book.douban.com/subject/24851460/)
 - [战争与国家形成：春秋战国与近代早期欧洲之比较](https://book.douban.com/tag/%E8%AE%B8%E7%94%B0%E6%B3%A2)
-- [第四次转折](http://m.ishare.iask.sina.com.cn/f/9679610.html)
+- [《第四次转折》](http://m.ishare.iask.sina.com.cn/f/9679610.html)
 - [《乌合之众》](https://book.douban.com/subject/6966569/)
 - [《娱乐至死》](https://book.douban.com/subject/1062193/)