html file overwritten when downloading separate observations

[bhilbert4]

For 01138, I downloaded observation 4 with one command, and then downloaded observation 5 with a second command. This was done in order to save each to a separate subdirectory. Looking at the html file, it shows only observation 5 files. It's also located in the directory along side the obsnum directories. It might be better to save it in the obsnum directory. This will save the overwriting issue, and give easier to digest html files with one file for each obsnum.

@arminrest