Probably not a manual, no. And Truestate itself is just a single script these days, so there's really no need for a separate package file.
The reason I probably won't be releasing a manual is TrueState 3 is on the horizon, and with TS3 I intend to remove the choice between TrueState and TrueState+. As that will be a change for basic TrueState, I'll be updating the manual and hopefully putting together a video tutorial series.
If you do check out TS+ and have any questions, feel free to hit me up on Discord and I'll answer any questions when I'm available.