Format/typo check 2006/sloane + change alt default

The README.md file has been format/typo checked.

The alt code default usleep(3) value has been increased from 65000 to
75000.

This should complete 2006/sloane.

2006/sloane/Makefile

@@ -59,7 +59,7 @@ ARCH=
 
 # Defines that are needed to compile
 #
-CDEFINE= -DS=65000
+CDEFINE= -DS=75000
 
 # Include files that are needed to compile
 #