wip: update XML comments

src/PepperDash.Essentials.Core/Room/EssentialsRoomBase.cs

@@ -620,6 +620,9 @@ namespace PepperDash.Essentials.Core
     /// </summary>
     public abstract class EssentialsRoomEmergencyBase : IKeyed
     {
+        /// <summary>
+        /// Key of the room
+        /// </summary>
         public string Key { get; private set; }
 
         /// <summary>

src/PepperDash.Essentials.Core/Room/Interfaces.cs

@@ -34,6 +34,9 @@ namespace PepperDash.Essentials.Core
     [Obsolete("Will be removed in a future version")]
     public interface IHasMultipleDisplays
     {
+        /// <summary>
+        /// Gets the Displays dictionary
+        /// </summary>
         Dictionary<eSourceListItemDestinationTypes, IRoutingSink> Displays { get; }
     }