Merge pull request #32 from MikeRogers0/feature/better-documentation-link

Updating Sendgrid API link

Author: wingrunr21

README.md

@@ -29,7 +29,7 @@ More Information
 ----------------
 
 * [SendGrid](http://www.sendgrid.com)
-* [SendGrid Parse API](http://www.sendgrid.com/docs/API_Reference/Webhooks/parse.html)
+* [SendGrid Parse API](https://sendgrid.com/docs/for-developers/parsing-email/setting-up-the-inbound-parse-webhook/)
 
 Credits
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