Improve make-army task

[MuhammedZakir]

Fix grammar and indent some paragraphs.

Complements #2081.

[iliakan]

Had to make a few amendments in commit e61bfa2

[MuhammedZakir]

Had to make a few amendments in commit e61bfa2

I will keep that in mind. :-)

About that last one,

Now, as you've put so much effort into reading this, and the final recipe is so simple - just use `for`, you may wonder -\- was it worth that?

Without backslash, HTML output of this paragraph was strange. That's why, I added it. I forgot what the problem was though.

[iliakan]

-- gets autoconverted to – (long dash) by the rendering engine.

[MuhammedZakir]

-- gets autoconverted to – (long dash) by the rendering engine.

I see. So does it show correctly now? Also, how long does the site take to show updated content?

Edit: I misunderstood that sentence and, that was not the strange output I got.
Edit-2: Okay, that is indeed what I am getting now. I got it all mixed up. Sorry!