`isClient=true` for posting files to sites is wrong

[jgstew]

Issue here: https://developer.bigfix.com/rest-api/api/site.html

The doc doesn't match the example URL: https://lab.bigfix.me:52311/api/site/custom/test/file/101?isClientFile=true;force=true

It should be isClientFile=true but is currently in the doc as isClient=true