Feature Request: Support for Globally Defining Variables

[Gregb87]

I had assumed that this would be a standard feature.
That you can define variables globally in one location (eg, docs.json), and then just reference the variable (eg, {product.name} ) wherever you want across the docs source.

For example:

When using {product.name}, this thing can be done....

Seems that is not the case and that you currently have to create a component and then import/export that to any page you want to use them.

We use variables extensively throughout our docs and I feel it would be much easier to manage by having them globally defined and then simply referenced in the source (as per example above) where needed.