Correct some Markdown

docs/namespace/index.md

@@ -1,4 +1,8 @@
-## Darwin Core Namespace Policy
+---
+container: fixed
+---
+
+# Darwin Core Namespace Policy
 
 Title
 : Darwin Core Namespace Policy
@@ -31,9 +35,9 @@ Creator
 : Darwin Core Task Group
 
 Bibliographic citation
-: Darwin Core Task Group. 2009. Darwin Core Namespace Policy. Biodiversity Information Standards (TDWG). http://rs.tdwg.org/dwc/terms/namespace/
+: Darwin Core Task Group. 2009. Darwin Core Namespace Policy. Biodiversity Information Standards (TDWG). <http://rs.tdwg.org/dwc/terms/namespace/>
 
-## 1. Introduction
+## 1 Introduction
 
 This document and the policies contained herein are modeled on the [Dublin Core Metadata Initiative Namespace Policy](http://dublincore.org/documents/2007/07/02/dcmi-namespace/). All terms in the Darwin Core must be identified with a unique Uniform Resource Identifier (URI). For convenience, the term URIs are grouped into collections known as _Darwin Core namespaces_. This document describes the policies associated with Darwin Core namespaces and how term URIs are allocated by the [Darwin Core Maintenance Group](http://www.tdwg.org/activities/darwincore/).
 
@@ -45,7 +49,7 @@ All sections of this document are normative.
 
 This document is targeted toward those who want to make changes to the Darwin Core, either by refining terms that already exist or by adding new terms to increase the capabilities of the standard.
 
-## 2. Namespace URIs
+## 2 Namespace URIs
 
 The Darwin Core namespace URI for the collection of general Darwin Core properties, classes, and encoding schemes is:
 
@@ -65,20 +69,20 @@ The term identifier for the current (recommended) version of a term is a URI bas
 http://rs.tdwg.org/dwc/terms/scientificName
 ```
 
-is the Darwin Core term identifier for the _scientificName_ property, while
+is the Darwin Core term identifier for the `scientificName` property, while
 
 ```
 http://rs.tdwg.org/dwc/terms/MachineObservation
 ```
 
-is the Darwin Core term identifier for the _MachineObservation_ class.
+is the Darwin Core term identifier for the `MachineObservation` class.
 
 All Darwin Core identifiers will dereference to a Darwin Core term declaration for the identified term.
 
-## 3. Term change policy
+## 3 Term change policy
 
 (This section has been superseded by the [Vocabulary Maintenance Specification](https://github.com/tdwg/vocab/blob/master/vms/maintenance-specification.md))
 
-## 4. Persistence policy
+## 4 Persistence policy
 
 [TDWG](https://www.tdwg.org/) recognizes that people and applications depend on the persistence of formal documents and machine processable schemas that have been made publicly available. In particular, the stability of Darwin Core term URIs and Darwin Core namespace URIs is critical to interoperability over time. Thus, the wide promulgation of this set of URIs dictates that they be maintained to support legacy applications that have adopted them.