Add asUInt() and asBool() to Ledger Documentation

Cloud
1

Consider adding asUInt() and asBool() to the Ledger documentation.

if (config.has("accessoryEnabled"))
    accessoryEnabled = config["accessoryEnabled"].asBool();

if (config.has("accessoryTime"))
    accessoryTime = config["accessoryTime"].asUInt();
2

I suppose, but operator[] returns a Variant and all of those methods as described in the Variant class documentation.