Copyedited changelog and readme

Author: 1ec5

CHANGELOG.md

@@ -3,7 +3,7 @@ All notable changes to this project will be documented in this file. For change
 
 ## Master
 
-- Added `getBestMatchingLanguage` for determining the best language when it's unknown if the users locale is supported.
+- Added `getBestMatchingLanguage` for determining the closest available language. Pass a user locale into this method before passing the return value into `compile`. [#168](https://github.com/Project-OSRM/osrm-text-instructions/pull/168)
 
 ## 0.8.0 2017-10-04
 

Readme.md

@@ -27,8 +27,8 @@ Grammatical cases and other translated strings customization after [Transifex](h
 var version = 'v5';
 var osrmTextInstructions = require('osrm-text-instructions')(version);
 
-// If you are unsure if the users locale is supported, use `getBestMatchingLanguage` method to find an appropriate language.
-var language = osrmTextInstructions.getBestMatchingLanguage('en');
+// If you’re unsure if the user’s locale is supported, use `getBestMatchingLanguage` method to find an appropriate language.
+var language = osrmTextInstructions.getBestMatchingLanguage('en-US');
 
 response.legs.forEach(function(leg) {
   leg.steps.forEach(function(step) {