Documentation-style comments

Config.cs

@@ -1,8 +1,23 @@
 namespace PublishTimes;
 
+/// <summary>
+/// Represents the configuration settings for exporting a schedule,
+/// including file name, directory path, and available topics.
+/// </summary>
 public class Config
 {
+    /// <summary>
+    /// Gets or sets the name of the schedule file.
+    /// </summary>
     public string? File { get; set; }
+
+    /// <summary>
+    /// Gets or sets the directory path where the schedule file is stored.
+    /// </summary>
     public string? Path { get; set; }
+
+    /// <summary>
+    /// Gets or sets the list of available topics from the configuration file.
+    /// </summary>
     public TomlArray? Topics { get; set; }
 }