Merge branch 'docs/change-text-from-examples' into 'master'

Fix text based on example

See merge request gitlab-org/gitlab-ce!27787

doc/ci/yaml/README.md

@@ -2065,8 +2065,8 @@ include:
     file: /templates/docker-workflow.yml
 ```
 
-The `/templates/docker-workflow.yml` present in `/group/my-project` includes two local files
-of the `/group/my-project`:
+The `/templates/docker-workflow.yml` present in `group/my-project` includes two local files
+of the `group/my-project`:
 
 ```yaml
 include:
@@ -2074,14 +2074,14 @@ include:
   - local: : /templates/docker-testing.yml
 ```
 
-Our `/templates/docker-build.yml` present in `/group/my-project` adds a `docker-build` job:
+Our `/templates/docker-build.yml` present in `group/my-project` adds a `docker-build` job:
 
 ```yaml
 docker-build:
   script: docker build -t my-image .
 ```
 
-Our second `/templates/docker-test.yml` present in `/group/my-project` adds a `docker-test` job:
+Our second `/templates/docker-test.yml` present in `group/my-project` adds a `docker-test` job:
 
 ```yaml
 docker-test: