Please describe menu button location better

```
I have low vission problems. I am new to android. I spent a long time looking
for any way to access the menu on my Acer A1-810. There is a set of standard
buttons on the bottom of the screen that uses maybe 8% of it. I never new an
app could put a button there. I "looked" every where I knew to look. It was
only by chance that I touched the lower right corner and the talkback said
menu, then after I felt around it said menu button. Even after coming to the
wiki I was lost. I was ready to uninstall.

Please consider providing some kind of message saying the menu is where it is.

thank you
chuck
```

Original issue reported on code.google.com by `sativarg@gmail.com` on 7 May 2014 at 1:59

No files, tests, or entry points are named. Start by locating the menu button and the user-facing path around it, then determine where a message could explain its location; done means a new Android user with low vision can discover the menu without relying on chance.

Written by the indexing model from the issue text.