updates to markdown processing to allow custom elements

src/renderer.ts

@@ -90,6 +90,8 @@ function code(renderer: marked.Renderer, opts: MarkdownOptions) {
 			case 'bash:samp': {
 				// Find the first newline that is not preceeded by a "\"
 				const end_of_input = /(?<!\\)(?:\r\n|\r|\n)/.exec(code);
+
+				// todo: handling for multi-line heredocs?
 	
 				// If there is no such newline, the whole content is input
 				if (! end_of_input) {