Clean up TOC

doc/ci/yaml/README.md

@@ -13,34 +13,34 @@ If you want a quick introduction to GitLab CI, follow our
 **Table of Contents**  *generated with [DocToc](https://github.com/thlorenz/doctoc)*
 
 - [.gitlab-ci.yml](#gitlab-ci-yml)
-    - [image and services](#image-and-services)
-    - [before_script](#before_script)
-    - [after_script](#after_script)
-    - [stages](#stages)
-    - [types](#types)
-    - [variables](#variables)
-    - [cache](#cache)
-        - [cache:key](#cache-key)
+  - [image and services](#image-and-services)
+  - [before_script](#before_script)
+  - [after_script](#after_script)
+  - [stages](#stages)
+  - [types](#types)
+  - [variables](#variables)
+  - [cache](#cache)
+    - [cache:key](#cache-key)
 - [Jobs](#jobs)
-    - [script](#script)
-    - [stage](#stage)
-    - [job variables](#job-variables)
-    - [only and except](#only-and-except)
-    - [tags](#tags)
-    - [when](#when)
-    - [environment](#environment)
-    - [artifacts](#artifacts)
-        - [artifacts:name](#artifacts-name)
-        - [artifacts:when](#artifacts-when)
-        - [artifacts:expire_in](#artifacts-expire_in)
-    - [dependencies](#dependencies)
-    - [before_script and after_script](#before_script-and-after_script)
+  - [script](#script)
+  - [stage](#stage)
+  - [only and except](#only-and-except)
+  - [job variables](#job-variables)
+  - [tags](#tags)
+  - [when](#when)
+  - [environment](#environment)
+  - [artifacts](#artifacts)
+    - [artifacts:name](#artifactsname)
+    - [artifacts:when](#artifactswhen)
+    - [artifacts:expire_in](#artifactsexpire_in)
+  - [dependencies](#dependencies)
+  - [before_script and after_script](#before_script-and-after_script)
 - [Git Strategy](#git-strategy)
 - [Shallow cloning](#shallow-cloning)
 - [Hidden jobs](#hidden-jobs)
 - [Special YAML features](#special-yaml-features)
-    - [Anchors](#anchors)
-- [Validate the .gitlab-ci.yml](#validate-the-gitlab-ci-yml)
+  - [Anchors](#anchors)
+- [Validate the .gitlab-ci.yml](#validate-the-gitlab-ciyml)
 - [Skipping builds](#skipping-builds)
 - [Examples](#examples)