Add mapreduce paper to notes

Author: lewiszlw

content/notes/index.md

@@ -8,6 +8,7 @@ template = "notes.html"
 - [Architecture of a Database System](https://db.cs.berkeley.edu/papers/fntdb07-architecture.pdf)
 - [Apache Arrow DataFusion: A Fast, Embeddable, Modular Analytic Query Engine](https://github.com/apache/datafusion/files/15149988/DataFusion_Query_Engine___SIGMOD_2024-FINAL-mk4.pdf)
 - [The Google File System](https://static.googleusercontent.com/media/research.google.com/zh-CN//archive/gfs-sosp2003.pdf)
+- [MapReduce: Simplified Data Processing on Large Clusters](https://static.googleusercontent.com/media/research.google.com/zh-CN//archive/mapreduce-osdi04.pdf)
 
 ## Technical Books I have read
 - 《操作系统导论》 / Operating Systems: Three Easy Pieces