fix(il): add new partne

Author: RoRoJ

pages/interlink/concepts.mdx

@@ -58,7 +58,7 @@ A pairing key is a unique identifier used to establish and authenticate an Inter
 
 ## Partner
 
-A partner is a third party service provider that facilitates a hosted InterLink between a client's on-premises infrastructure, and their Scaleway infrastructure. Current partners include [Free Pro](https://pro.free.fr/), with more coming soon.
+A partner is a third party service provider that facilitates a hosted InterLink between a client's on-premises infrastructure, and their Scaleway infrastructure. Current partners include [Free Pro](https://pro.free.fr/) and [France IX](https://www.franceix.net), with more coming soon.
 
 Partners are generally companies specialized in data transit, with their own fibers at data connection points. To establish an InterLink via a partner, generally you must be a client of that partner, e.g. with your infrastructure in their datacenter, or on your own premises using the partner as a network provider. See our information on [hosted InterLinks](/interlink/reference-content/overview/#hosted-interlinks) for more information.