Docs: Remove duplicate "the" typo (#2071)

Author: schlpbch

docs/getting-started.md

@@ -66,5 +66,5 @@ Using gulpfile ~/my-project/gulpfile.js
 
 - [API Documentation](API.md) - The programming interface, defined
 - [Recipes](recipes) - Specific examples from the community
-- [In Depth Help](https://travismaynard.com/writing/getting-started-with-gulp) - A tutorial from the the guy who wrote the book
+- [In Depth Help](https://travismaynard.com/writing/getting-started-with-gulp) - A tutorial from the guy who wrote the book
 - [Plugins](https://gulpjs.com/plugins/) - Building blocks for your gulp file