Merge pull request #9 from Automattic/fix/readme-typo

Fix typo in Readme

README.md

@@ -32,7 +32,7 @@ The following attributes can be set in the options object to alter the translati
 * **options.args** [string, array, or object] arguments you would pass into sprintf to be run against the text for string substitution. [See docs](http://www.diveintojavascript.com/projects/javascript-sprintf)
 * **options.components** [object] markup must be added as React components and not with string substitution. See [mixing strings and markup](#mixing-strings-and-markup).
 * **options.comment** [string] comment that will be shown to the translator for anything that may need to be explained about the translation.
-* **options.context** [string] provides the ability for the translator to provide a different translation for the same text in two locations (_dependent on context_). Usually context should only be used after a string has been discovered to require different translations. If you want to provide help on how to translate (which is highly appreciated!), please us a comment.
+* **options.context** [string] provides the ability for the translator to provide a different translation for the same text in two locations (_dependent on context_). Usually context should only be used after a string has been discovered to require different translations. If you want to provide help on how to translate (which is highly appreciated!), please use a comment.
 
 ## Usage