diff --git a/README.md b/README.md
index c59cc6a..1b693c1 100644
--- a/README.md
+++ b/README.md
@@ -33,29 +33,38 @@ python3 -m pip install yamlfixer-opt-nc
 This software automatically fixes some errors and warnings reported by
 `yamllint`.
 
-
-
 ```shell
-$ yamlfixer [--debug] [--verbose] [--backup] *.yml - thisfile.yaml
+yamlfixer --help
+usage: yamlfixer [-h] [-v] [-b] [-d] [-j | -s] [file [file ...]]
+
+Fix formatting problems in YAML documents. If no file is specified,
+then reads input from `stdin`.
+
+positional arguments:
+  file               the YAML files to fix. Use `-` to read from `stdin`.
+
+optional arguments:
+  -h, --help         show this help message and exit
+  -v, --version      display this program's version number
+  -b, --backup       make a backup copy of original files as `.orig`
+  -d, --debug        output debug information to stderr.
+  -j, --jsonsummary  output JSON summary to stderr.
+  -s, --summary      output plain text summary to stderr.
 ```
 
-or:
-
-```shell
-$ yamlfixer [--help] [--version]
-```
-
-This will launch `yamllint` on each specified filename, then parse its
-output and try to fix the reported problems. The special filename `-`
-means `stdin`, and is assumed if there's no other filename argument.
+yamlfixer launches `yamllint` on each specified filename, then parses
+its output and try to fix the reported problems. The special filename
+`-` means `stdin`, and is assumed if there's no other filename
+argument.
 
 If input is read from `stdin`, the corrected output will be sent to
 `stdout`.
+
 Other files will be overwritten if needed. Original files,
 `stdin` excepted, can be preserved as `.orig` if the `--backup`
 command line option is used.
 
-Diagnostic information is sent to stderr in verbose or debug modes.
+Both summaries and diagnostic information are sent to stderr.
 
 This command exits with `-2` if yamllint is not available on your
 system. Otherwise it exits with `0` if all input files either are
diff --git a/setup.cfg b/setup.cfg
index b16813b..8d4c184 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [metadata]
-version = 0.3.0
+version = 0.3.1
 name = yamlfixer-opt-nc
 description = automates the fixing of problems reported by yamllint
 long_description = file: README.md
@@ -11,7 +11,8 @@ long_description_content_type = text/markdown
 url = https://github.com/opt-nc/yamlfixer
 project_urls =
     Bug Tracker = https://github.com/opt-nc/yamlfixer/issues
-    Releases = https://github.com/opt-nc/yamlfixer/releases
+    GitHub Releases = https://github.com/opt-nc/yamlfixer/releases
+    Files = https://pypi.org/project/yamlfixer-opt-nc/#files
 classifiers =
     Programming Language :: Python :: 3
     License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)
diff --git a/yamlfixer/__init__.py b/yamlfixer/__init__.py
index 928aa13..451fc41 100755
--- a/yamlfixer/__init__.py
+++ b/yamlfixer/__init__.py
@@ -10,7 +10,7 @@
 import argparse
 import json
 
-__version__ = "0.3.0"
+__version__ = "0.3.1"
 __author__ = "OPT-NC"
 __license__ = "GPLv3+"
 __copyright__ = "Copyright (C) 2021-%s %s" % (time.strftime("%Y",