PipeScript should be embeddable within Markdown

Transpiles Markdown with Inline PipeScript into Markdown.

Because Markdown does not support comment blocks, PipeScript can be written inline inside of specialized Markdown code blocks.

PipeScript can be included in a Markdown code block that has the Language ```PipeScript{```

In Markdown, PipeScript can also be specified as the language using any two of the following characters ```.<>```