README.md in us_time_zones-2.0.8 vs README.md in us_time_zones-2.0.9

@@ -1,17 +1,15 @@
 # UsTimeZones
 
-Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/us_time_zones`. To experiment with that code, run `bin/console` for an interactive prompt.
+This gem takes in a set of coordinates and returns a US time zone as long as the input coordinates are in the US. The gem should therefore be used in conjunction with other time zone APIs to ensure international coverage. The US’s time zone boundaries are surprisingly unusual, and the Google Maps time zone API, as well as other APIs I have tested, do not perfectly account for some of the more esoteric boundaries.
 
-TODO: Delete this and the text above, and describe your gem
-
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'us_time_zones'
+gem 'us_time_zones', '~> 2.0.9'
 ```
 
 And then execute:
 
     $ bundle
@@ -20,10 +18,19 @@
 
     $ gem install us_time_zones
 
 ## Usage
 
-TODO: Write usage instructions here
+TZ.whichTZ?([LAT, LNG]) #==> returns US TIME ZONE
+
+Example:
+TZ.whichTZ?([33, -84]) #==> returns “US Eastern Time Zone”
+
+If outside the US:
+==> returns "Unable to determine time zone for coordinates outside the US"
+OR
+==> returns “Error”
+
 
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake false` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.