Apply suggestions from code review

Co-authored-by: Genevieve Warren <[email protected]>

xml/System.Formats.Asn1/AsnDecoder.xml

@@ -46,7 +46,7 @@
         <param name="source">The buffer containing encoded data.</param>
         <param name="ruleSet">The encoding constraints to use when interpreting the data.</param>
         <param name="bytesConsumed">
-          <para>When this method returns, the number of bytes from the beginning of <paramref name="source" /> that contributed to the length.</para>
+          <para>When this method returns, contains the number of bytes from the beginning of <paramref name="source" /> that contributed to the length.</para>
           <para>This parameter is treated as uninitialized.</para>
         </param>
         <summary>
@@ -1181,11 +1181,11 @@ The contents are not valid under the current encoding rules.</exception>
         <param name="source">The buffer containing encoded data.</param>
         <param name="ruleSet">The encoding constraints to use when interpreting the data.</param>
         <param name="decodedLength">
-          <para>When this method returns, the decoded value of the length, or <see langword="null" /> if the encoded length represents the indefinite length.</para>
+          <para>When this method returns, contains the decoded value of the length, or <see langword="null" /> if the encoded length represents the indefinite length.</para>
           <para>This parameter is treated as uninitialized.</para>
         </param>
         <param name="bytesConsumed">
-          <para>When this method returns, the number of bytes from the beginning of <paramref name="source" /> that contributed to the length.</para>
+          <para>When this method returns, contains the number of bytes from the beginning of <paramref name="source" /> that contributed to the length.</para>
           <para>This parameter is treated as uninitialized.</para>
         </param>
         <summary>