Merge pull request #4 from zhuzilin/add-book-recommendation

推荐一些适合自学的系统类书籍

docs/好书推荐.md

@@ -6,6 +6,7 @@
 - Principles of Computer System Design: An Introduction
 - Computer Systems: A Programmer's Perspective
 ## 操作系统
+- [Operating Systems: Three Easy Pieces](https://pages.cs.wisc.edu/~remzi/OSTEP/)
 - Operating Systems: Principles and Practice (2nd Edition)
 ## 计算机网络
 - [Computer Networks: A Systems Approach](https://book.systemsapproach.org/foreword.html)
@@ -13,10 +14,14 @@
 ## 编译原理
 - [My First Language Frontend with LLVM Tutorial](https://llvm.org/docs/tutorial/MyFirstLanguageFrontend/index.html)
 - 龙书
+## 计算机语言（PL）
+- Essentials of Programming Languages (EOPL)
 ## 体系结构
 - Computer Architecture: A Quantitative Approach 5th Edition
 ## 分布式系统
 - [Patterns of Distributed System](https://github.com/dreamhead/patterns-of-distributed-systems)
 - [Distributed Systems for fun and profit](http://book.mixu.net/distsys/index.html)
 ## 数据密集型系统设计
-- Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems
+- Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems ([开源中文翻译](https://github.com/Vonng/ddia))
+## 密码学
+- Cryptography Engineering: Design Principles and Practical Applications