[PATCH 2/2] toolsoftrade: Use `\path{}` for filename

[SeongJae Park <sj38.park@gmail.com>]

A file name in toolsoftrade chapter is using `\co{}`.  This commit fixes
it to use `\path{}` instead as 'Style Guide' chapter mentions.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
---
 toolsoftrade/toolsoftrade.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/toolsoftrade/toolsoftrade.tex b/toolsoftrade/toolsoftrade.tex
index ac25855..1ac7a34 100644
--- a/toolsoftrade/toolsoftrade.tex
+++ b/toolsoftrade/toolsoftrade.tex
@@ -107,7 +107,7 @@ grep $pattern1 | sed -e 's/a/b/' | sort
 	For a sufficiently large input file,
 	\co{grep} will pattern-match in parallel with \co{sed}
 	editing and with the input processing of \co{sort}.
-	See the file \co{parallel.sh} for a demonstration of
+	See the file \path{parallel.sh} for a demonstration of
 	shell-script parallelism and pipelining.
 } \QuickQuizEnd

-- 
2.10.0