Fix typo (#249)

Author: dennisreimann

mkdocs.yml

@@ -1,6 +1,6 @@
 site_name: Specter DIY Documentation
 site_url: https://docs.specter.solutions/diy
-repo_url: https://github.com/cryptoadvance/specter-iy/
+repo_url: https://github.com/cryptoadvance/specter-diy/
 nav:
     - Home:
       - 'Introduction': README.md
@@ -17,4 +17,4 @@ nav:
       - communication.md
       - simulator.md
 theme: 
-  name: readthedocs
+  name: readthedocs