restore link to "The History of Erlang"

languages/erlang/README.md

@@ -3,6 +3,8 @@
 * [Making reliable distributed systems in the presence of software errors](http://erlang.org/download/armstrong_thesis_2003.pdf)
 PhD thesis of Joe Armstrong, Erlang’s co-inventor, describing the origins of Erlang.
 
+* [A History of Erlang](https://www.labouseur.com/courses/erlang/history-of-erlang-armstrong.pdf) by Joe Armstrong
+
 * [Characterizing the Scalability of Erlang VM on Many-core Processors](http://www.diva-portal.org/smash/get/diva2:392243/FULLTEXT01.pdfOn) by Jianrong Zhang
 
 * [On the Scalability of the Erlang Term Storage](http://winsh.me/papers/erlang_workshop_2013.pdf) by David Klaftenegger, Konstantinos Sagonas, Kjell Winblad