added info about the new .NET memory book (#21326)

diff --git a/Documentation/botr/garbage-collection.md b/Documentation/botr/garbage-collection.md
index f10bf0c..a9c955a 100644 (file)
--- a/Documentation/botr/garbage-collection.md
+++ b/Documentation/botr/garbage-collection.md
@@ -2,7 +2,7 @@ Garbage Collection Design
 =========================
 Author: Maoni Stephens ([@maoni0](https://github.com/maoni0)) - 2015
 
-Note: See _The Garbage Collection Handbook_ (referenced in the resources section at the end of this document) to learn more about garbage collection topics.
+Note: See _The Garbage Collection Handbook_ to learn more about garbage collection topics in general; for specific knowledge on the CLR GC please refer to the _Pro .NET Memory Management_ book. Both referenced in the resources section at the end of this document.
 
 Component Architecture
 ======================
@@ -330,3 +330,4 @@ Resources
 - [.NET CLR GC Implementation](https://raw.githubusercontent.com/dotnet/coreclr/master/src/gc/gc.cpp)
 - [The Garbage Collection Handbook: The Art of Automatic Memory Management](http://www.amazon.com/Garbage-Collection-Handbook-Management-Algorithms/dp/1420082795)
 - [Garbage collection (Wikipedia)](http://en.wikipedia.org/wiki/Garbage_collection_(computer_science))
+- [Pro .NET Memory Management](https://prodotnetmemory.com/)