doc(deploying): Minor grammatical fixes

Author: krancour

src/using-deis/deploying-an-application.md

@@ -41,14 +41,14 @@ Deis supports three different ways of building applications:
 
 Heroku buildpacks are useful if you want to follow Heroku's best practices for building applications or if you are porting an application from Heroku.
 
-Learn how to use deploy applications on Deis [using Buildpacks](using-buildpacks.md).
+Learn how to deploy applications on Deis [using Buildpacks](using-buildpacks.md).
 
 
 ### Dockerfiles
 
 Dockerfiles are a powerful way to define a portable execution environment built on a base OS of your choosing.
 
-Learn how to use deploy applications on Deis [using Dockerfiles](using-dockerfiles.md).
+Learn how to deploy applications on Deis [using Dockerfiles](using-dockerfiles.md).
 
 
 ### Docker Image
@@ -57,7 +57,7 @@ Deploying a Docker image onto Deis allows you to take a Docker image from either
 or a private registry and copy it over bit-for-bit, ensuring that you are running the same
 image in development or in your CI pipeline as you are in production.
 
-Learn how to use deploy applications on Deis [using Docker images](using-docker-images.md).
+Learn how to deploy applications on Deis [using Docker images](using-docker-images.md).
 
 [application]: ../reference-guide/terms.md#application
 [controller]: ../understanding-deis/components.md#controller