Add note about alt code of 1992/lush (gets())

This code should probably be deleted but that can happen another time.
This can be considered a reminder to do this when I have the time.

1992/lush/README.md

@@ -28,7 +28,7 @@ code` section below.
 
 ### Alternate code:
 
-The original source (fixed to work with gcc) which uses gets() try:
+For the original source (fixed to work with gcc) which uses gets() try:
 
 ```sh
 make alt