More bug fixes for TOC, titling, and formatting.

_data/concepts.yml

@@ -2,8 +2,8 @@ bigheader: "Concepts"
 abstract: "Detailed explanations of Kubernetes system concepts and abstractions."
 toc:
 - docs/concepts/index.md
-section:
+  section:
-- title: Kubernetes Objects
+  - title: Kubernetes Objects
     section:
     - docs/concepts/abstractions/overview.md
     - docs/concepts/abstractions/pod.md

docs/concepts/index.md

@@ -30,7 +30,7 @@ In addition, Kubernetes contains a number of higher-level abstractions called Co
 
 * ReplicaSet
 * Deployment
-* [StatefulSet](/docs/concepts/abstractions/controllers/statefulsets/))
+* [StatefulSet](/docs/concepts/abstractions/controllers/statefulsets/)
 * DaemonSet
 * Job