Corrected a comment line in the Makefile to match the text of the option in configure.
diff --git a/sky130/Makefile.in b/sky130/Makefile.in index 2461f76..24c1672 100644 --- a/sky130/Makefile.in +++ b/sky130/Makefile.in
@@ -14,7 +14,7 @@ # Run "configure" from the top level directory. Use the following # configuration options to match your environment: # -# --enable-skywater-pdk[=<path>] +# --enable-sky130-pdk[=<path>] # If enabled, install the skywater PDK. If <path> is specified, # then the skywater PDK is expected to be found rooted at the # given path. If not specified, then the skywater PDK will be