Document default value for UseStructuredContent. (#539)

Co-authored-by: Steven Luiten <[email protected]>

Author: S-Luiten

src/ModelContextProtocol.Core/Server/McpServerToolAttribute.cs

@@ -245,8 +245,13 @@ public bool ReadOnly
     /// Gets or sets whether the tool should report an output schema for structured content.
     /// </summary>
     /// <remarks>
+    /// <para>
     /// When enabled, the tool will attempt to populate the <see cref="Tool.OutputSchema"/>
     /// and provide structured content in the <see cref="CallToolResult.StructuredContent"/> property.
+    /// </para>
+    /// <para>
+    /// The default is <see langword="false"/>.
+    /// </para>
     /// </remarks>
     public bool UseStructuredContent { get; set; }
 }

src/ModelContextProtocol.Core/Server/McpServerToolCreateOptions.cs

@@ -129,8 +129,13 @@ public sealed class McpServerToolCreateOptions
     /// Gets or sets whether the tool should report an output schema for structured content.
     /// </summary>
     /// <remarks>
+    /// <para>
     /// When enabled, the tool will attempt to populate the <see cref="Tool.OutputSchema"/>
     /// and provide structured content in the <see cref="CallToolResult.StructuredContent"/> property.
+    /// </para>
+    /// <para>
+    /// The default is <see langword="false"/>.
+    /// </para>
     /// </remarks>
     public bool UseStructuredContent { get; set; }