Merge pull request #27 from aaronang/docs/grammar

Fix grammar

Author: Matt Bernier

CONTRIBUTING.md

@@ -168,7 +168,7 @@ Please run your code through:
 
 4. Commit your changes in logical chunks. Please adhere to these [git commit
    message guidelines](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html)
-   or your code is unlikely be merged into the main project. Use Git's
+   or your code is unlikely to be merged into the main project. Use Git's
    [interactive rebase](https://help.github.com/articles/interactive-rebase)
    feature to tidy up your commits before making them public.
 

README.md

@@ -4,7 +4,7 @@
 
 # Announcements
 
-All updates to this module is documented in our [CHANGELOG](https://github.com/sendgrid/smtpapi-nodejs/blob/master/CHANGELOG.md).
+All updates to this module are documented in our [CHANGELOG](https://github.com/sendgrid/smtpapi-nodejs/blob/master/CHANGELOG.md).
 
 # Installation