line breaks for proper markdown

Author: gordonwoodhull

docs/extensions/engine.qmd

@@ -86,17 +86,23 @@ The `ExecutionEngineDiscovery` interface specifies
 The `execute` method processes the entire markdown of the document after includes and embeds, and before cell language handlers and Pandoc.
 
 For the languages that it claims, it should replace each code block with:
+
 1.  If `options.format.execute.echo` is true, the same code block in non-executable syntax, e.g. if the input is
+
     ````markdown
     ```{{python}}
     ```
     ````
+
     Then the output should be
+
     ````markdown
     ``` {.python}
     ```
     ````
+
     adding other classes and attributes as appropriate.
+    
     If `echo` is false, the code should not be output.
 2.  Any outputs from executing the code block, depending on `options.format.execute.output`