Update navigation.yml

Author: piotr-zuralski

_data/navigation.yml

@@ -80,7 +80,7 @@ social_links:
     - url: https://www.crunchbase.com/person/piotr-%C5%BBuralski
       title: "Piotr Żuralski at Crunchbase"
       display: false
-    - url: http://www.goldenline.pl/piotr-zuralski/
+    - url: https://www.goldenline.pl/piotr-zuralski/
       title: "Piotr Żuralski at GoldenLine"
       display: false
     - url: https://medium.com/@piotr.zuralski