Summary
    Allows you to specify an alternate metadata key for the heading documents.
    
		- Assembly
 - Wyam
.Html .dll  - Namespace
 - Wyam
.Html  - Containing Type
 - Headings
 
Syntax
public Headings WithMetadataKey(string metadataKey)
	Parameters
| Name | Type | Description | 
|---|---|---|
| metadataKey | string | The metadata key to store the heading documents in. | 
Return Value
| Type | Description | 
|---|---|
| Headings | The current module instance. | 
