fix vagrant invalid file path error, update README

.gitignore

@@ -3,3 +3,5 @@ config.cfg
 gochan
 log/
 lib/
+vagrant/.vagrant/
+vagrant/ubuntu-xenial-16.04-cloudimg-console.log

README.md

@@ -1,17 +1,15 @@
 # Gochan
-
 A multi-threaded imageboard server written in Go
 
 http://gochan.org
 
 
-Installation
-------------
+## Installation
 
+### Basic installation
 Coming soon!
 
-
-Documentation
--------------
-
-Coming soon!
+### For developers (using Vagrant)
+1. Install Vagrant and Virtualbox. Vagrant lets you create a virtual machine and run a custom setup/installation script to make installation easier and faster.
+2. From the command line, cd into vagrant/ and run `vagrant up`
+3. After it finishes installing the Ubuntu VM, follow the printed instructions.

vagrant/bootstrap.sh

@@ -38,7 +38,7 @@ EOF123
 service mysql restart &
 wait
 rm -f /etc/nginx/sites-enabled/* /etc/nginx/sites-available/*
-cp -f /vagrant/gochan.nginx /etc/nginx/sites-available/gochan.nginx
+cp -f /vagrant/gochan-fastcgi.nginx /etc/nginx/sites-available/gochan.nginx
 ln -sf /etc/nginx/sites-available/gochan.nginx /etc/nginx/sites-enabled/
 
 # VirtualBox shared folders don't play nicely with sendfile.