grammar fix to readme

doc/examples/README.md

-
-# How you build script is run
+# How your build script is run
 The runner runs the line below before it runs the commands in your build script:
@@ -31,4 +30,4 @@ The build command is run from [GitlabCi::Build#command](https://gitlab.com/gitla
 + We welcome contributions of examples for other environments.
 Please see [cookbook-gitlab-test](https://gitlab.com/gitlab-org/cookbook-gitlab-test/blob/master/README.md)
-for instructions how to prepare a server to run CI tests for GitLab.
+for instructions how to prepare a server to run CI tests for GitLab.
\ No newline at end of file