recommend --auto-abstract and = to connect option arguments

Author: michaliskambi

src/index.asciidoc

@@ -47,7 +47,7 @@ Process this source code with PasDoc, and get documentation in one of the output
 
 ```shell
 mkdir -p output-dir/
-pasdoc myunit.pas --format html --output output-dir
+pasdoc myunit.pas --format=html --auto-abstract --output=output-dir
 ```
 
 You can also use the GUI interface, see link:PasDocGui[PasDoc GUI].