fixed buy tft links

content/footer/footer.md

@@ -34,7 +34,7 @@ items:
     - name: Start Farming
       link: https://threefold.io/farming/get_3node
     - name: Buy the Token
-      link: /token
+      link: https://threefold.io/info/threefold#/threefold__how_to_buy_and_sell
     - name: Test the Cloud
       link: https://threefold.io/cloud
     - name: Try the Marketplace

content/navigation/navigation.md

@@ -57,7 +57,7 @@ navLinks:
         external: true
 
       - title: Buy the Token
-        path: /token
+        path: https://threefold.io/info/threefold#/threefold__how_to_buy_and_sell
 
       - title: Test the Cloud
         path: /cloud