updated exercises to pass tests

Author: Alex-Jamshidi

individual-shell-tools/sed/script-04.sh

@@ -4,4 +4,4 @@ set -euo pipefail
 
 # TODO: Write a command to output input.txt replacing every occurrence of the string "We'll" with "We will".
 # The output should contain 11 lines.
-sed "s/We'll/We will/g" input.txt
+sed s"/We'll/We will/g" ./input.txt