add known issues link

Author: TylerMSFT

docs/debugger/cpp-dynamic-debugging.md

@@ -259,6 +259,8 @@ If breakpoints don't hit in deoptimized functions:
 
 - Dynamic Deoptimization won't work consistently if `/dynamicdeopt` isn't passed to `cl.exe`, `lib.exe`, and `link.exe` for all `.cpp`, `.lib`, and binary files. Confirm that the proper switches are set when you build your project.
 
+For more information about known issues, see [C++ Dynamic Debugging: Full Debuggability for Optimized Builds](https://devblogs.microsoft.com/cppblog/?p=35229&preview=1&_ppp=311c983177#known-issues).
+
 If things aren't working as expected, open a ticket at [Developer Community](https://developercommunity.visualstudio.com/cpp). Include as much information as possible about the issue.
 
 ## General notes