Add PID 6809 for the Doppelganger project (#226)

* Add PID 6809 for the Doppelganger project

* Update my blog address and split the github URLs

* Fix https in url and switch hard and soft urls

* Correct hardware/software mistake

Author: NilujePerchut

1209/6809/index.md

@@ -0,0 +1,11 @@
+---
+layout: pid
+title: Doppelganger
+owner: TachRadio
+license: BSD-2-Clause
+site: http://thewireddoesntexist.org
+source: https://github.com/NilujePerchut/doppelganger_soft
+---
+Joystick interface to Brook PCB and old video game systems.
+Hardware part of the project can be found here:
+https://github.com/NilujePerchut/doppelganger_hardware

org/TachRadio/index.md

@@ -0,0 +1,6 @@
+---
+layout: org
+title: Tach Radio
+site: http://thewireddoesntexist.org
+---
+Old video game systems hacks organisation.