Update Makefile

Makefile

@@ -6,14 +6,14 @@
 CC = gcc
 
 # The option -Werror convert warning into error 
-FLAGS = -Werror -pthread
+FLAGS = -Wall -Werror -pthread
 
 #TEST_FLAGS = -I${HOME}/local/include} -L${HOME}/local/lib -Wall -lcunit 
 
 fact: fact.c
 	$(CC) $(FLAGS) fact.c -o fact -lm
 	echo "fact.c file compiled"
-	# File provinding wrong numbers (negative, <2, 0), command:
+	# Check wrong numbers (negative, <2, 0, large numbers, etc.) with the command:
 	#       ./fact incorrect_numbers.txt out.txt
 
 test: Fact_UnitTest.c