README.md in rdoc-markdown-0.3.4 vs README.md in rdoc-markdown-0.3.5

@@ -17,10 +17,10 @@
 ## Usage
 RDoc will auto-detect rdoc-markdown plugin if it was installed. You just need to instruct RDoc to produce markdown output instead of standard HTML through `format` parameter.
 
 Run following command in directory with ruby source code:
 
-`rdoc --format=markdown`
+`rdoc --format=markdown --markup=markdown`
 
 This will produce a tree of markdown documents and search index in `/doc` folder. Every class in library will have it's own markdown file.
 
 ## Development
 Biggest issue is testing this locally, but that's not as hard to do these days.