Update history and fix broken link

Author: avivace

src/History.md

@@ -1,6 +1,6 @@
 # History
 
-Pan Docs - also known as `GAMEBOY.TXT` or `GBSPEC.TXT` - is an old document dating back to early 1995 originally written by *Pan of Anthrox*. It has been one of the most important references for Game Boy hackers, emulators and homebrew developers during the last 25 years.
+Pan Docs - also known as `GAMEBOY.TXT` or `GBSPEC.TXT` - is an old document dating back to early 1995, originally written by *Pan of Anthrox*. It has been one of the most important references for Game Boy hackers, emulators and homebrew developers during the last 25 years.
 
 <p align="center">
 <img src="https://raw.githubusercontent.com/gbdev/pandocs/master/historical/1995-Jan-28-ATX-GBI/ADDRESS1.png">
@@ -12,6 +12,10 @@ After its release (1995-2008), it received a number of revisions, corrections an
 
 In 2008, a **wikified** version (using Martin Korth's 2001 revision as a baseline) has been published. The document was split into different articles and it continued being maintained and updated in that form.
 
-In 2020, after this [RFC](https://github.com/gbdev/awesome-gbdev/issues/153) we migrated the last updated version to **plain Markdown** and made [github.com/gbdev/pandocs](https://github.com/gbdev/pandocs) the new home of this resource, where it can receive new public discussions and contributions, maintain its legacy and historical relevance, while making use of modern tools and workflows to be visualized and distributed.
+In 2020, after the discussion in this [RFC](https://github.com/gbdev/pandocs/issues/275) we migrated the last updated version to **plain Markdown** and made [github.com/gbdev/pandocs](https://github.com/gbdev/pandocs) the new home of this resource, where it can receive new public discussions and contributions, maintain its legacy and historical relevance, while making use of modern tools and workflows to be visualized and distributed.
 
-We are releasing everything (content, sources, code, figures) under the CC0 license (Public Domain).
+From 2020 to May 2021 we used [VuePress](https://vuepress.github.io/) to render the markdown files as web pages.
+
+Since May 2021, we rely on [mdBook](https://rust-lang.github.io/mdBook/).
+
+We are releasing everything (content, sources, code, figures) under the CC0 license (Public Domain).