Replace by english message

functions.c

@@ -3,9 +3,9 @@
 void usage() {
 	printf("Usage: [options] [crypt|decrypt] [file]\n");
 	printf("Options:\n");
-	printf("\t-c: chiffrement de Cesar\n");
-	printf("\t-v: chiffrement de Vigenere\n");
-	printf("\t-t: chiffrement par transposition\n");
+	printf("\t-c: Caesar cipher\n");
+	printf("\t-v: Vigenere cipher\n");
+	printf("\t-t: Transposition cipher\n");
 }
 int fileExist(const char *path) {
 	FILE *f=NULL;

main.c

@@ -77,7 +77,7 @@ int main(int argc, char *argv[]) {
 		int key;
 
 		do{
-			printf("Votre cle de chiffrement (entre 1 et 26): ");
+			printf("Your key (between 1 and 26): ");
 			scanf("%d",&key);
 		}while(key < 1 || key > 26);