Update memory.md

aspnetcore/performance/memory.md

@@ -79,7 +79,7 @@ The chart displays two values for the memory usage:
 
 ### Transient objects
 
-The following API creates a 10-KB String instance and returns it to the client. On each request, a new object is allocated in memory and written to the response. Strings are stored as UTF-16 characters in .NET so each character takes 2 bytes in memory.
+The following API creates a 20-KB String instance and returns it to the client. On each request, a new object is allocated in memory and written to the response. Strings are stored as UTF-16 characters in .NET so each character takes 2 bytes in memory.
 
 ```csharp
 [HttpGet("bigstring")]
@@ -156,7 +156,7 @@ When multiple containerized apps are running on one machine, Workstation GC migh
 
 The GC cannot free objects that are referenced. Objects that are referenced but no longer needed result in a memory leak. If the app frequently allocates objects and fails to free them after they are no longer needed, memory usage will increase over time.
 
-The following API creates a 10-KB String instance and returns it to the client. The difference with the previous example is that this instance is referenced by a static member, which means it's never available for collection.
+The following API creates a 20-KB String instance and returns it to the client. The difference with the previous example is that this instance is referenced by a static member, which means it's never available for collection.
 
 ```csharp
 private static ConcurrentBag<string> _staticStrings = new ConcurrentBag<string>();