Compared to almost all readmes of other Ticalc.org games, programs and softwares, I think Axe guide is by far the most professional one that isn't written by KermMartian. It might not be 100% complete, but it gets the job done for explaining how the language works and it comes with an explanation of what each command does (separate file). Plus, like most other languages, there are various third-party tutorials available out there (although the largest one is in French).
Also Quigibo is gone since version 1.2.0. Runer112 took over the Axe project since 2012 so it is possible that he either lacks the tools to edit a PDF file (or that PDF file in particular) or he simply prefers to focus his efforts on improving the language rather than the readme.
Since you're the first person in 3 years to complain about the readme incompleteness (other than myself regarding how Getcalc() works, but it was more a confusing command syntax than readme issue) care to explain in details what, besides spelling/grammar problems, looks unprofessional and incomplete in the User's Guide?
alot
It just seems a bit odd to me that after 3 years, somebody with only 58 posts (2 of which contains no text), who was at the wrong end of a ban stick once, suddenly starts complaining about the Axe Parser user's guide having
*a lot of typos and grammar errors...