fix URLs generated by gen_dot_winner.sh for one entry

For 2020/ferguson1 as a test, we fixed the URLs generated
by `gen_dot_winner.sh`.

As GitHub seems to not want to render HTML of files
that start with "." we copied `2020/ferguson1/.inventory.html`
to `2020/ferguson1/inventory.html` as a test.

tmp/gen_dot_winner.sh

@@ -636,7 +636,7 @@ for i in "${!WINNERS_RANK[@]}"; do
     # print inventory item
     #
     cat >> "$TMP_DOT_INVENTORY_MD" << EOF
-| ${WINNER_TEXT[$i]} | [${FILE_PATH[$i]}]($URL) |
+| ${WINNER_TEXT[$i]} | [${FILE_PATH[$i]}]($USE_URL) |
 EOF
 done