diff --git a/README.md b/README.md
index ad2c98d..f4dbe95 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ related files and scripts to pre-process genomic data generated at the [Duke-GCB
 
 Example of usage:
 ```
-$ python ggr_cwl_ipynb_gen.py \
+$ ggr_cwl_ipynb_gen \
   --root-dir /path/to/rootdir \
   --metadata examples/Hong_3979_170316B1.xlsx \
   --out /path/to/output_dir \
@@ -15,9 +15,12 @@ The information in the example metadata and configuration file should reveal wha
 
 For a full list of options:
 ```
-$ python ggr_cwl_ipynb_gen.py -h
-usage: Generator of Jupyter notebooks to execute CWL pre-processing pipelines [-h] -o OUT -m METADATA [-f] [-n] [--metadata-sep SEP] [--project-name PROJECT_NAME]
-                                                                              [--data-from {sftp,miseq,other,dukeds,local}] [-c CONF_FILE] [-u USER] [-e USER_DUKE_EMAIL] [-r ROOT_DIR]
+$ ggr_cwl_ipynb_gen -h
+usage: Generator of Jupyter notebooks to execute CWL pre-processing pipelines
+       [-h] -o OUT -m METADATA [-f] [-n] [--metadata-sep SEP]
+       [--project-name PROJECT_NAME]
+       [--data-from {dukeds,sftp,miseq,other,local}] [-c CONF_FILE] [-u USER]
+       [-e USER_DUKE_EMAIL] [-r ROOT_DIR] [-v VERSION]
 
 optional arguments:
   -h, --help            show this help message and exit
@@ -25,17 +28,25 @@ optional arguments:
   -m METADATA, --metadata METADATA
                         Metadata file with samples information
   -f, --force           Force to overwrite output file
-  -n, --no-upload       Avoids uploading generated data to database when specified
-  --metadata-sep SEP    Separator for metadata file (when different than Excel spread sheet)
+  -n, --no-upload       Avoids uploading generated data to database when
+                        specified
+  --metadata-sep SEP    Separator for metadata file (when different than Excel
+                        spread sheet)
   --project-name PROJECT_NAME
-                        Project name (by default, basename of metadata file name)
-  --data-from {sftp,miseq,other,dukeds,local}
-                        Choices: sftp, miseq, other, dukeds, local
+                        Project name (by default, basename of metadata file
+                        name)
+  --data-from {dukeds,sftp,miseq,other,local}
+                        Choices: dukeds, sftp, miseq, other, local
   -c CONF_FILE, --conf-file CONF_FILE
                         YAML configuration file (see examples)
   -u USER, --user USER  HARDAC User used in SLURM (default: ${USER})
   -e USER_DUKE_EMAIL, --user-duke-email USER_DUKE_EMAIL
-                        Email(s) notified when execution is finished (default: ${USER}@duke.edu)
+                        Email(s) notified when execution is finished (default:
+                        ${USER}@duke.edu)
   -r ROOT_DIR, --root-dir ROOT_DIR
-                        Root directory where all subfolders and files will be created (semi-required: either defined here or in conf-file)
+                        Root directory where all subfolders and files will be
+                        created (semi-required: either defined here or in
+                        conf-file)
+  -v VERSION, --version VERSION
+                        Print version of the program and exit
 ```