Add MTSS ACK to CHERI specification.

Author: rwatson

cheri-architecture.tex

@@ -66,8 +66,8 @@
     Sponsored by the Defense Advanced Research Projects Agency (DARPA) and the
     Air Force Research Laboratory (AFRL), under contract FA8750-10-C-0237
     (``CTSRD''), with additional support from FA8750-11-C-0249 (``MRC2''),
-    HR0011-18-C-0016 (``ECATS''), FA8650-18-C-7809 (``CIFV''), and
-    HR0011-22-C-0110 (``ETC'') as part of
+    HR0011-18-C-0016 (``ECATS''), FA8650-18-C-7809 (``CIFV''),
+    HR0011-22-C-0110 (``ETC''), and HR0011-23-C-0031 (``MTSS'') as part of
     the DARPA CRASH, MRC, and SSITH research programs.
     The views, opinions, and/or findings contained in this report are those of
     the authors and should not be interpreted as representing the official