Starting to create the renderer integrations.

These are the layer directly over dust which can be used by anything, not just blog posts.

src/main.rs

@@ -12,6 +12,7 @@ mod cli;
 mod command;
 mod config;
 mod error;
+mod render;
 
 fn main() -> Result<ExitCode, CustomError> {
     let rt = tokio::runtime::Runtime::new()?;