Used Jekyll's include_relative to make the display of .BAS files friendlier

(cherry picked from commit 5c43702a71)

apps/c1p/BASIC/README.md

@@ -1,27 +1,13 @@
 ---
 layout: page
-title: Challenger 1P BASIC Applications
+title: Challenger 1P BASIC Programs
 permalink: /apps/c1p/BASIC/
 ---
 
-Challenger 1P BASIC Applications
----
+Challenger 1P BASIC Programs
+----------------------------
 
-The following BASIC applications were supplied by Ohio Scientific:
+BASIC programs for the Challenger 1P have been archived from the following authors:
 
-- [BASIC MATH](OSI/MATH.BAS)
-- [CHECKING](OSI/CHECKING.bas)
-- [COUNTER](OSI/COUNTER.BAS)
-- [POKER](OSI/POKER.BAS)
-- [PRESIDENTS](OSI/PRESIDENTS.BAS)
-- [STAR WARS](OSI/STARWARS.BAS)
-- [TRIG TUTOR](OSI/TRIGTUTOR.BAS)
-
-The project also includes some eclectic BASIC programs written by [Jeff Parsons](https://twitter.com/jeffpar) from 1979 to 1980:
-
-- [CHECKERS](jeffpar/CHECKERS.BAS)
-- [HANG WOMAN](jeffpar/HANGWOMAN.BAS)
-- [LIFE](jeffpar/LIFE.BAS)
-- [OTHELLO](jeffpar/OTHELLO.BAS)
-- [SOFORECAST](jeffpar/SOFORECAST.BAS)
-- [TUBELIST](jeffpar/TUBELIST.BAS)
+- [Jeff Parsons](jeffpar/)
+- [Ohio Scientific](OSI/)