Update some docs.

Remove legacy docs CoC (the new one is in the root).

Remove legacy assets. (fixes #34)

Signed-off-by: Jason Volk <jason@zemos.net>

docs/configuration/examples.md

@@ -4,7 +4,7 @@
 <summary>Example configuration</summary>
 
 ```toml
-{{#include ../../conduwuit-example.toml}}
+{{#include ../../tuwunel-example.toml}}
 ```
 
 </details>
@@ -15,7 +15,7 @@
 <summary>Debian systemd unit file</summary>
 
 ```
-{{#include ../../debian/conduwuit.service}}
+{{#include ../../debian/tuwunel.service}}
 ```
 
 </details>
@@ -26,7 +26,7 @@
 <summary>Arch Linux systemd unit file</summary>
 
 ```
-{{#include ../../arch/conduwuit.service}}
+{{#include ../../arch/tuwunel.service}}
 ```
 
 </details>