Change 'Best of show' to 'Best of Show'

This fixes an inconsistency in case. The spreadsheet in tmp,
year_prize.numbers and the year_prize.csv files were updated also (with
the ./fix_csv.sh run under tmp/).

There was no need to manually update the index.html, any other html
files or .entry.json files as I used sgit(1) to change the case.

1989/jar.2/README.md

@@ -34,7 +34,7 @@ This is the most useful program submitted this year. It is a
 rather large subset of lisp.  It has no error recovery, and
 performs rather poorly in a number of cases.  Even so, placing
 all this functionality in such a small, densely packed program,
-is impressive enough to win the Best of show award.
+is impressive enough to win the Best of Show award.
 
 
 ## Author's remarks: