Update pt-help.txt

[jtmr05]

added missing options + fixed weird grammar

[Gy0m]

How do I add comments to all files changed since a certain commit?

that's what just see on stackoverflow and i see that the "code" have been changer and only the one who write the code

[Gy0m]

Thats'h hard wtiting on smartphone and anderdrand remembrer old scool commit that i learnd by thé past

[Gy0m]

Thanks for the little stress in m'y life ,diving in New advanture