fix: Update broken Dynamo paper link in README.md (#53)

README.md

@@ -35,7 +35,7 @@ Must read papers on distributed systems. While nearly *all* of Lamport's work sh
 - [Session Guarantees for Weakly Consistent Replicated Data](http:https://www.cs.utexas.edu/~dahlin/Classes/GradOS/papers/SessionGuaranteesPDIS.pdf) a '94 paper that talks about various recommendations for session guarantees for eventually consistent systems, many of this would be standard vocabulary in reading other dist. sys papers, like monotonic reads, read your writes etc.
 
 ### Storage & Databases
-- [Dynamo: Amazon's Highly Available Key Value Store](http:https://bnrg.eecs.berkeley.edu/~randy/Courses/CS294.F07/Dynamo.pdf)
+- [Dynamo: Amazon's Highly Available Key Value Store](https:https://www.allthingsdistributed.com/files/amazon-dynamo-sosp2007.pdf)
 Paraphrasing @fogus from their [blog](http:https://blog.fogus.me/2011/09/08/10-technical-papers-every-programmer-should-read-at-least-twice/), it is very rare for a paper describing an active production system to influence the state of active research in any industry; this is one of those seminal distributed systems paper that solves the problem of a highly available and fault tolerant database in an elegant way, later paving the way for systems like Cassandra, and many other AP systems using a consistent hashing.
 - [Bigtable: A Distributed Storage System for Structured Data](http:https://static.googleusercontent.com/media/research.google.com/en//archive/bigtable-osdi06.pdf)
 - [The Google File System](http:https://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/en/us/archive/gfs-sosp2003.pdf)