Added missing nsd.1, nsd.2, psd.1, and psd.2 rules to the MR rule
deck in klayout.

sky130/klayout/sky130A_mr.drc

diff --git a/sky130/klayout/sky130A_mr.drc b/sky130/klayout/sky130A_mr.drc
index 96fa34e..4f5b4e9 100755
--- a/sky130/klayout/sky130A_mr.drc
+++ b/sky130/klayout/sky130A_mr.drc
@@ -294,9 +294,22 @@
 #   npc
 log("START: 95/20 (npc)")
 npc.width(0.27, euclidian).output("npc.1", "npc.1 : min. npc width : 0.27um")
-npc.space(0.27, euclidian).output("npc.2", "npc.2 : min. npc spacing, should be mnually merge if less : 0.27um")
+npc.space(0.27, euclidian).output("npc.2", "npc.2 : min. npc spacing, should be manually merged if less than : 0.27um")
 log("END: 95/20 (npc)")
 
+#   nsdm
+log("START: 93/44 (nsdm)")
+nsdm.width(0.38, euclidian).output("nsd.1", "nsd.1 : min. nsdm width : 0.38um")
+nsdm.space(0.38, euclidian).output("nsd.2", "nsd.2 : min. nsdm spacing, should be manually merged if less than : 0.38um")
+log("END: 93/44 (nsdm)")
+
+#   psdm
+log("START: 94/20 (psdm)")
+psdm.width(0.38, euclidian).output("psd.1", "psd.1 : min. psdm width : 0.38um")
+psdm.space(0.38, euclidian).output("psd.2", "psd.2 : min. psdm spacing, should be manually merged if less than : 0.38um")
+log("END: 94/20 (psdm)")
+
+#   licon
 #   licon
 log("START: 66/44 (licon)")
 if SEAL