issues on getting started guide

[arosswilson]

Hey All,

first of all I'm excited to learn about spree and in general the getting started guide was very helpful! I picked up a few small issues (really more clarification than anything) that could help the next person.

issue 1.

This guide is very step by step, but I had to create my database:
be rake db:create
before installing spree:
spree install --auto-accept
the rails error here is pretty helpful but I didn't find it until I ran the rails server

issue 2.

To login as an admin, I tried going to http://localhost:3000/admin but was redirected to localhost:3000/login. It might be just a little clearer to call it login.

Thanks for making this guide - and hopefully these are helpful!

[JDutil]

The guide is in the project here https://github.com/spree/spree/blob/master/guides/content/developer/tutorials/getting_started_tutorial.md if you'd like to submit a PR with your suggested changes.

[damianlegawiec]

New install process introduced via 51cdf70 fixes this