Add doc "Silk Road: Drugs, Death and the Dark Web"

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-- **Title**: Silk Road: Drugs, Death and the Dark Web
-- **Link**: http://www.imdb.com/title/tt7301126/
-- **Genre**: Documentary
-- **Rating**: 7.4/10
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-- **Description**: A history of the infamous Silk Road marketplace.

readme.md

@@ -133,6 +133,7 @@ Check out my [blog](https://nikolaskama.me/) and follow me on [Twitter](https://
 | [Plug and Pray](http://www.imdb.com/title/tt1692889/)                                      | Documentary               | 2010 | 7.2/10 |
 | [In the Realm of the Hackers](http://www.imdb.com/title/tt1199631/)                        | Documentary               | 2003 | 7.4/10 |
 | [Softwaring Hard](http://www.imdb.com/title/tt3063636/)                                    | Documentary               | 2014 | 8.2/10 |
+| [Silk Road: Drugs, Death and the Dark Web](http://www.imdb.com/title/tt7301126/)                                    | Documentary               | 2017 | 7.4/10 |
 
 
 # TV Shows