Merge pull request #976 from shug0/patch-1

Adding masto.raildecake.fr, french instance 🌻🐘

docs/Using-Mastodon/List-of-Mastodon-instances.md

@@ -54,5 +54,6 @@ There is also a list at [instances.mastodon.xyz](https://instances.mastodon.xyz)
 | [social.bytestemplar.com](https://social.bytestemplar.com)|N/A|Yes|No|
 | [digitalhumanities.club](http://www.digitalhumanities.club)|[Digital humanities](http://whatisdigitalhumanities.com) community; invitations will open once code of conduct drafted.|No|No
 | [design.vu](https://design.vu)|— what's your design view‽|Yes|No|
+| [masto.raildecake.fr](https://masto.raildecake.fr)|Hebergé chez un FAI associatif dans le sud de la france, grillons & pins en options|Yes|No|
 
 Let me know if you start running one so I can add it to the list! (Alternatively, add it yourself as a pull request).