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.

2013/cable2/.entry.json

@@ -1,7 +1,7 @@
 {
     "no_comment" : "mandatory comment: because comments were removed from the original JSON spec",
     "entry_JSON_format_version" : "1.1 2024-02-11",
-    "award" : "Best of show",
+    "award" : "Best of Show",
     "year" : 2013,
     "dir" : "cable2",
     "entry_id" : "2013_cable2",