couple minor docs updates (#108453)

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

Author: github-actions[bot]

src/libraries/System.Formats.Nrbf/src/System/Formats/Nrbf/MessageEndRecord.cs

@@ -10,7 +10,7 @@ namespace System.Formats.Nrbf;
 /// Represents the record that marks the end of the binary format stream.
 /// </summary>
 /// <remarks>
-/// MessageEnd records are described in <see href="https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-nrbf/de6a574b-c596-4d83-9df7-63c0077acd32">[MS-NRBF] 2.6.3</see>.
+/// MessageEnd records are described in <see href="https://learn.microsoft.com/openspecs/windows_protocols/ms-nrbf/de6a574b-c596-4d83-9df7-63c0077acd32">[MS-NRBF] 2.6.3</see>.
 /// </remarks>
 internal sealed class MessageEndRecord : SerializationRecord
 {

src/libraries/System.Speech/src/Recognition/SrgsGrammar/SrgsSemanticInterpretationTag.cs

@@ -47,8 +47,8 @@ public string Script
 
         // Validate the SRGS element.
         /// <summary>
-        /// Validate each element and recurse through all the children srgs
-        /// elements if any.
+        /// Validates each element and recurses through all the children SRGS
+        /// elements, if any.
         /// </summary>
         internal override void Validate(SrgsGrammar grammar)
         {