Update JsonSerializerOptions.xml (#4983)

Author: NetMage

xml/System.Text.Json/JsonSerializerOptions.xml

@@ -357,7 +357,7 @@ For more information, see [How to serialize and deserialize JSON](/dotnet/standa
       <Docs>
         <summary>Gets or sets a value that determines whether <see langword="null" /> values are ignored during serialization and deserialization. The default value is <see langword="false" />.</summary>
         <value>
-          <see langword="true" /> to ignore null values during serialization and deserialization; otherwise, see langword="false" /&gt;.</value>
+          <see langword="true" /> to ignore null values during serialization and deserialization; otherwise, <see langword="false" />.</value>
         <remarks>
           <format type="text/markdown"><![CDATA[
 
@@ -458,7 +458,7 @@ For more information, see [How to serialize and deserialize JSON](/dotnet/standa
         <ReturnType>System.Boolean</ReturnType>
       </ReturnValue>
       <Docs>
-        <summary>Determines whether fields are handled serialization and deserialization.
+        <summary>Determines whether fields are handled during serialization and deserialization.
             The default value is <see langword="false" />.</summary>
         <value>To be added.</value>
         <remarks>To be added.</remarks>