Corrected some grammars

README.md

@@ -28,11 +28,11 @@ It works with Maven 3.0.5 and Docker 1.6.0 or later.
 #### Documentation
 
 * The **[User Manual](https://fabric8io.github.io/docker-maven-plugin)** [[PDF](https://fabric8io.github.io/docker-maven-plugin/docker-maven-plugin.pdf)] has a detailed reference for all and everything.
-* The [Introduction](doc/intro.md) is a high level
-  overview of this plugin's features and provides an usage example.
+* The [Introduction](doc/intro.md) is a high-level
+  overview of this plugin's features and provides a usage example.
   provided goals and possible configuration parameters.
 * [Examples](doc/examples.md) are below `samples/` and contain example
-  setups which you can use as blueprints for your own projects.
+  setups that you can use as blueprints for your projects.
 * [ChangeLog](doc/changelog.md) has the release history of this plugin.
 * [Contributing](CONTRIBUTING.md) explains how you can contribute to this project. Pull requests are highly appreciated!