Added a way to anonymously buy and exchange Monero

Author: ryosukeeeeee

docs/exclusive/mine.md

@@ -32,6 +32,8 @@
 
 关于在 Arch Linux 上钱包的选择与地址的获取，在[现代隐私保护指南](https://archlinuxstudio.github.io/ModernSecurityProtectionGuide/#/anonymous_pay)的章节中有详细描述，本文不再赘述。
 
+如果你需要匿名购买加密货币的渠道，可以考虑使用[localmonero](https://localmonero.co/)提供的购买门罗币的服务。在购买后门罗币地址间的互转是匿名的，对外部不可见的。如需转换门罗币至其他币种，以使用非中国大陆的加密货币兑换平台如[changenow](https://changenow.io/)。
+
 ### 挖矿
 
 挖矿是进入加密货币世界最直接的方式，本节描述如何在 Arch Linux 中进行加密货币挖矿。

docs/uk/exclusive/mine.md

@@ -32,6 +32,8 @@ If you want to use cryptocurrency, you first need to have a wallet. Currently, t
 
 The selection of wallets and the acquisition of addresses on Arch Linux are described in detail in the chapter of [Modern Privacy Protection Guide](https://archlinuxstudio.github.io/ModernSecurityProtectionGuide/#/anonymous_pay), and will not be repeated in this article.
 
+If you need a channel to buy cryptocurrencies anonymously, consider using the service provided by [localmonero](https://localmonero.co/) to buy monero. The transfer between Monero addresses after purchase is anonymous and invisible to the outside world. To convert Monero to other currencies, use a non-mainland Chinese cryptocurrency exchange platform such as [changenow](https://changenow.io/).
+
 ### Mining
 
 Mining is the most direct way to enter the cryptocurrency world, this section describes how to do cryptocurrency mining in Arch Linux.