Add eris and felidae buttons

PancakesWeb/Data/Button.cs

@@ -119,6 +119,18 @@ public static class Buttons
             Image = "zvava.png",
             Title = "zvava.org",
             Href = "https://zvava.org/"
+        },
+        new Button
+        {
+            Image = "eris.png",
+            Title = "eris meow :3",
+            Href = "https://eris.meows.gay/"
+        },
+        new Button
+        {
+            Image = "felidae.png",
+            Title = "felidae.city",
+            Href = "https://felidae.city/"
         }
     ];