* Fixed typo in help

src/img2txt.c

@@ -57,7 +57,7 @@ static void usage(int argc, char **argv)
     fprintf(stderr, "\t\t\trandom   : Random\n");
     fprintf(stderr, "\t\t\tfstein   : Floyd Steinberg (default)\n");
     fprintf(stderr, "  -f, --format=FORMAT\t\tFormat of the resulting image :\n");
-    fprintf(stderr, "\t\t\tansi : coulored ANSI (default)\n");
+    fprintf(stderr, "\t\t\tansi : coloured ANSI (default)\n");
     fprintf(stderr, "\t\t\tcaca : internal libcaca format\n");
     fprintf(stderr, "\t\t\tutf8 : UTF8 with CR\n");
     fprintf(stderr, "\t\t\tutf8 : UTF8 with CRLF (MS Windows)\n");