New module help tab (in ACP) links to "Using Jamroom" Forum... Ok, but...
Using Jamroom
It looks like gibberish because its in the development section and the section is about coding.
The title of that document is {if jrCore_module_is_active()}{/if} and its about how to code a module is active block.
I've updated the docs for the Gravitar Images module.
Docs: "Gravatar Images"
https://www.jamroom.net/the-jamroom-network/documentation/modules/2947/gravatar-images
If there is anything you feel is missing from the docs, let me know and I'll get it in there