RequestOptions: Fixes Etag code documentation

Microsoft.Azure.Cosmos/src/RequestOptions/RequestOptions.cs

@@ -17,15 +17,22 @@ public class RequestOptions
         /// Gets or sets the If-Match (ETag) associated with the request in the Azure Cosmos DB service.
         /// </summary>
         /// <remarks>
-        /// Most commonly used with the Delete* and Replace* methods of <see cref="Container"/> such as <see cref="Container.ReplaceItemAsync{T}(T, string, PartitionKey?, ItemRequestOptions, System.Threading.CancellationToken)"/>.
+        /// Most commonly used with the Delete* and Replace* methods of <see cref="Container"/> such as <see cref="Container.ReplaceItemAsync{T}(T, string, PartitionKey?, ItemRequestOptions, System.Threading.CancellationToken)"/>.
+        /// 
+        /// <see cref="Container.CreateItemAsync{T}(T, PartitionKey?, ItemRequestOptions, System.Threading.CancellationToken)"/> will ignore <see cref="IfMatchEtag"/> if specificed. 
         /// </remarks>
         public string IfMatchEtag { get; set; }
 
         /// <summary>
+        /// Most commonly used to detect changes to the resource
         /// Gets or sets the If-None-Match (ETag) associated with the request in the Azure Cosmos DB service.
         /// </summary>
         /// <remarks>
-        /// Most commonly used to detect changes to the resource
+        /// Most commonly used with reads such as <see cref="Container.ReadItemAsync{T}(string, PartitionKey, ItemRequestOptions, System.Threading.CancellationToken)"/>.
+        /// When Item Etag matches the specified <see cref="IfNoneMatchEtag"/> then 304 status code will be returned, otherwise existing Item will be returned with 200.
+        /// 
+        /// To match any Etag use "*"
+        /// If specified for writes (ex: Create, Replace, Delete) will be ignored.
         /// </remarks>
         public string IfNoneMatchEtag { get; set; }