Updated documentation formatting

docs/datasette-serve-help.txt

@@ -10,11 +10,14 @@ Options:
                             connections from the local machine will be allowed. Use
                             0.0.0.0 to listen to all IPs and allow access from other
                             machines.
+
   -p, --port INTEGER        Port for server, defaults to 8001. Use -p 0 to automatically
                             assign an available port.
+
   --debug                   Enable debug mode - useful for development
   --reload                  Automatically reload if database or code change detected -
                             useful for development
+
   --cors                    Enable CORS by serving Access-Control-Allow-Origin: *
   --load-extension PATH     Path to a SQLite extension to load
   --inspect-file TEXT       Path to JSON file created using "datasette inspect"
@@ -25,6 +28,7 @@ Options:
   --memory                  Make :memory: database available
   --config CONFIG           Set config option using configname:value
                             datasette.readthedocs.io/en/latest/config.html
+
   --version-note TEXT       Additional note to show on /-/versions
   --help-config             Show available config options
   --help                    Show this message and exit.