Add admin interface for RRule

program/admin.py

 from django.contrib import admin
-from program.models import Category, FundingCategory, Language, MusicFocus, Topic, Type
+from program.models import (
+    Category,
+    FundingCategory,
+    Language,
+    MusicFocus,
+    RRule,
+    Topic,
+    Type,
+)
 
 
 class AdminWithNameSlugIsActive(admin.ModelAdmin):
@@ -10,9 +18,14 @@ class LanguageAdmin(admin.ModelAdmin):
     list_display = ("name", "is_active")
 
 
+class RRuleAdmin(admin.ModelAdmin):
+    list_display = ("name", "freq", "interval", "by_set_pos", "by_weekdays", "count")
+
+
 admin.site.register(Category, AdminWithNameSlugIsActive)
 admin.site.register(FundingCategory, AdminWithNameSlugIsActive)
 admin.site.register(Language, LanguageAdmin)
 admin.site.register(MusicFocus, AdminWithNameSlugIsActive)
+admin.site.register(RRule, RRuleAdmin)
 admin.site.register(Topic, AdminWithNameSlugIsActive)
 admin.site.register(Type, AdminWithNameSlugIsActive)