Update README.md

Add full path for docker

README.md

@@ -59,7 +59,7 @@ cd my_wiki
 Now you can convert `filename.xml` using docker.
 Note: do **not** use the output parameter. The output will always be written into the subdirectory `output` of the current path. (hence the creation of a new directory). This is necessary, because the docker container does not have access to your filesystem except for the current directory (because of the `-v $PWD:/app` parameter for docker)
 ```bash
-docker run -v $PWD:/app mediawiki-to-gfm --filename=filename.xml
+docker run -v $PWD:/app outofcontrol/mediawiki-to-gfm --filename=filename.xml
 ```
 
 ## Export Mediawiki Files to XML