put in warning

bin/rename-images-by-mtime

@@ -1,4 +1,7 @@
 #!/bin/bash
+# be advised: this script is dumb and you should use
+# https://github.com/ayoisaiah/f2
+# instead
 
 set -x
 

bin/rename-videos-by-mtime

@@ -1,4 +1,7 @@
 #!/bin/bash
+# be advised: this script is dumb and you should use
+# https://github.com/ayoisaiah/f2
+# instead
 
 set -x