Fixed doc comments.

src/Avalonia.Controls/Primitives/AccessText.cs

@@ -78,12 +78,7 @@ namespace Avalonia.Controls.Primitives
             }
         }
 
-        /// <summary>
-        /// Creates the <see cref="FormattedText"/> used to render the text.
-        /// </summary>
-        /// <param name="constraint">The constraint of the text.</param>
-        /// <param name="text">The text to generated the <see cref="FormattedText"/> for.</param>
-        /// <returns>A <see cref="FormattedText"/> object.</returns>
+        /// <inheritdoc/>
         protected override FormattedText CreateFormattedText(Size constraint, string text)
         {
             return base.CreateFormattedText(constraint, StripAccessKey(text));

src/Avalonia.Controls/TextBlock.cs

@@ -348,7 +348,7 @@ namespace Avalonia.Controls
         /// Creates the <see cref="FormattedText"/> used to render the text.
         /// </summary>
         /// <param name="constraint">The constraint of the text.</param>
-        /// <param name="text">The text to generated the <see cref="FormattedText"/> for.</param>
+        /// <param name="text">The text to format.</param>
         /// <returns>A <see cref="FormattedText"/> object.</returns>
         protected virtual FormattedText CreateFormattedText(Size constraint, string text)
         {