As chance would have it, Rudif has contributed Update HTML Doc with exactly this problem in mind. As he says in the intro on that page:

...in several circumstances you may wish to use this script here, to convert pod found in module files to html and/or to update the TOC:

    1. you added html files found on the web
    2. you installed a module from CPAN whose files contain pod
    3. you installed your own scripts or modules containing pod