DOCS: Correct number of dockers in README

README.md

@@ -75,10 +75,10 @@ Detailed installation instructions, as well as instructions for installing PyRad
 
 ### Docker
 
-PyRadiomics contains three "flavors" of [Dockers](https://www.docker.com/).  The first is a command line installation of the `pyradiomics` and `pyradiomicsbatch` command lines.  The second is a [Jupyter notebook](http://jupyter.org/) with PyRadiomics pre-installed with example Notebooks.  The third is a Ubuntu 16 based Docker for command line and interactive use. To build the Dockers:
+PyRadiomics also supports [Dockers](https://www.docker.com/).  Currently, the only docker available is a [Jupyter notebook](http://jupyter.org/) with PyRadiomics pre-installed with example Notebooks. To build the Docker:
 
     docker build -t radiomics/notebook .
-    
+
 The `radiomics/notebook` Docker has an exposed volume (`/data`) that can be mapped to the host system directory.  For example, to mount the current directory:
 
     docker run --rm -it --publish 8888:8888 -v `pwd`:/data radiomics/notebook