add file to .gitignore
first commit of tutorial

* http://www.sinatrarb.com/intro.html
make all routes of '/'.

HTTP methods paired with a URL-matching pattern.
add route patterms may include named parameters with params hash
fixed : named parameters via block parameters
add route pattern '/say/*'

may also include splat (or wildcard) parameters.
setup : Guard and LiveReload

http://knitatoms.net/blog/2012/06/08/rack-live-reload-with-sinatra/
fix : with block parameters
fix : matching with Regular Expressions
fix : Or with a block parameter
Route patterns may have optional parameters
fix : Or with a block parameter
add routes '/foo' and conditions

include a variety of matching conditions
add : Other available conditions are host_name and provides
add : own conditions
add : For a condition that takes multiple values use a splat
chg : '/' return value with responds to object#each
go slice to invastigate.
tested check func is multiples of 3 or 5.
fix : switch use.