add bat help

lib/function.sh

@@ -2,7 +2,7 @@ function cl() {
 	DIR="$*"
 	# if no DIR given, go home
 	if [ $# -lt 1 ]; then 
-		DIR=$HOME
+    DIR=$HOME
 	fi
 	builtin cd "${DIR}" &&
 		# use your preferred ls command
@@ -72,3 +72,8 @@ py2nb2html() {
 	echo "generating html file for $pyfile"
 	jupytext --to notebook -o - $pyfile | jupyter nbconvert --execute --to html --stdin $@
 }
+
+alias bathelp='bat --plain --language=help'
+help() {
+    "$@" --help 2>&1 | bathelp
+}