#17 Improve interactive UX

As https://www.gnu.org/software/bash/manual/bash.html#Bash-POSIX-Mode says:

When invoked as sh, Bash enters POSIX mode after reading the startup files.

POSIX mode is garbage, I prefer to use Readline when writing text interactively, also there are some nice options for the read builtin.

• Make use of the -p read option
• Make use of the -e read option

Well, mkblog.sh was supposed to be strictly POSIX Shell. Instead of discussing this pull request much, would you like it if I transfer the repository to you and let you become the owner of it? I have a fulltime job these days (I'm no longer a student) and lose pretty much all my spare time on maintaining Pext. I believe this project is probably in better hands with you than with me.

Well, mkblog.sh was supposed to be strictly POSIX Shell.

(Not sure if many people use a strictly POSIX shell though.) I guess the best way to go would be to add a --posix option.

Would you like it if I transfer the repository to you and let you become the owner of it?

OK, I can maintain it. You don't need to transfer it, I think you can add me as owner, but I don't really mind.

I added you as an administrator. Do with the repository as you wish :)