Corrected a typo in the magic techfile.

sky130/magic/sky130.tech

diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 89ce5f8..bb88072 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -3264,7 +3264,7 @@
  calma URPM 79 20
  calma LDNTM 11 44
  calma HVNTM 125 20
- # poly.resistor ID mark
+ # Poly resistor ID mark
  calma POLYRES 66 13
  # Diffusion resistor ID mark
  calma DIFFRES 65 13