I'm beginning to collect the missing bits concerning the help files.
If you fill such issues, please indicate [Update HC2] as a tag and assign it to me, so we can find them easily. I hope we can have all the corrections ready for 3.4.
You can take this bug as an example https://bugs.freedesktop.org/show_bug.cgi?id=34858.
We have a special stylesheet that we can place in the product to get the references of the strings in the sources. I'll upload it on the wiki this week-end.