Update config-legends.json

Author: JulianPrieber

config/config-legends.json

@@ -124,7 +124,7 @@
 
 
     {"value": "JOIN_BETA",
-    "title": "Join the Beta",
+    "title": "Join the Beta Program",
     "description": "Enables the use of beta versions when updating. Read more at: s.llc.ovh/b."
     },