Update style and docs

Author: cdervis

Example/Program.cs

@@ -5,11 +5,11 @@
 
 class SomeClass
 {
-  public string SomeString { get; set; }
+  public string? SomeString { get; set; }
 
   public int SomeInt { get; set; }
 
-  public int[] SomeInts { get; set; }
+  public int[]? SomeInts { get; set; }
 
   public DateTime SomeDate { get; set; }
 
@@ -68,9 +68,9 @@ private static void HowToCreateAConfig()
     // as long as the string value of the setting can be converted to the type you wish to obtain.
     string nameValue = cfg["SomeStructure"]["SomeString"].StringValue;
 
-    int ageValue = cfg["SomeStructure"]["SomeInt"].IntValue;
+    var ageValue = cfg["SomeStructure"]["SomeInt"].IntValue;
 
-    DateTime dateValue = cfg["SomeStructure"]["SomeDate"].DateTimeValue;
+    var dateValue = cfg["SomeStructure"]["SomeDate"].DateTimeValue;
 
     // Print our config just to see that it works.
     PrintConfig(cfg);
@@ -113,7 +113,7 @@ private static void HowToCreateObjectsFromSections()
     // Test.
     Console.WriteLine("SomeString:   " + p.SomeString);
     Console.WriteLine("SomeInt:      " + p.SomeInt);
-    PrintArray("SomeInts", p.SomeInts);
+    PrintArray("SomeInts", p.SomeInts!);
     Console.WriteLine("SomeDate:     " + p.SomeDate);
   }
 

Src/Configuration.cs

@@ -586,7 +586,7 @@ public static CultureInfo CultureInfo
 
     /// <summary>
     /// Gets the array that contains all valid comment delimiting characters.
-    /// The current value is { '#', ';' }.
+    /// The default value is { '#', ';' }.
     /// </summary>
     public static HashSet<char> ValidCommentChars { get; private set; }
 
@@ -599,7 +599,8 @@ public static CultureInfo CultureInfo
     public static char PreferredCommentChar
     {
       get => s_preferredCommentChar;
-      set {
+      set
+      {
         if (!ValidCommentChars.Contains(value))
         {
           throw new ArgumentException("The specified char '" + value + "' is not allowed as a comment char.");
@@ -620,7 +621,8 @@ public static char PreferredCommentChar
     public static char ArrayElementSeparator
     {
       get => s_arrayElementSeparator;
-      set {
+      set
+      {
         if (value == '\0')
         {
           throw new ArgumentException("Zero-character is not allowed.");