From c0d4c5a1064b993cd418609e196743b68d8cfbd0 Mon Sep 17 00:00:00 2001
From: Eli Flanagan <eflanagan@innovu.com>
Date: Tue, 7 May 2019 07:48:43 -0400
Subject: [PATCH] ensure docker invocation is ephemeral

Also adjust the tag to use the `:stable` tag mentioned in the prior
line.
---
 README.md | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index d426216..1da609f 100644
--- a/README.md
+++ b/README.md
@@ -114,14 +114,14 @@ Services and platforms with third party plugins:
 * [SonarQube](https://www.sonarqube.org/) through [sonar-shellcheck-plugin](https://github.com/emerald-squad/sonar-shellcheck-plugin)
 
 Most other services, including [GitLab](https://about.gitlab.com/), let you install
-ShellCheck yourself, either through the system's package manager (see [Installing](#installing)), 
+ShellCheck yourself, either through the system's package manager (see [Installing](#installing)),
 or by downloading and unpacking a [binary release](#installing-the-shellcheck-binary).
 
 It's a good idea to manually install a specific ShellCheck version regardless. This avoids
 any surprise build breaks when a new version with new warnings is published.
 
 For customized filtering or reporting, ShellCheck can output simple JSON, CheckStyle compatible XML,
-GCC compatible warnings as well as human readable text (with or without ANSI colors). See the 
+GCC compatible warnings as well as human readable text (with or without ANSI colors). See the
 [Integration](https://github.com/koalaman/shellcheck/wiki/Integration) wiki page for more documentation.
 
 ## Installing
@@ -182,7 +182,7 @@ Or use OneClickInstall - https://software.opensuse.org/package/ShellCheck
 On Solus:
 
     eopkg install shellcheck
-    
+
 On Windows (via [scoop](http://scoop.sh)):
 
     scoop install shellcheck
@@ -195,7 +195,7 @@ From Docker Hub:
 
 ```sh
 docker pull koalaman/shellcheck:stable  # Or :v0.4.7 for that version, or :latest for daily builds
-docker run -v "$PWD:/mnt" koalaman/shellcheck myscript
+docker run --rm -v "$PWD:/mnt" koalaman/shellcheck:stable myscript
 ```
 
 or use `koalaman/shellcheck-alpine` if you want a larger Alpine Linux based image to extend. It works exactly like a regular Alpine image, but has shellcheck preinstalled.
@@ -221,9 +221,9 @@ If you still want to do so in order to upgrade at your leisure or ensure the lat
 
 ## Installing the shellcheck binary
 
-*Pre-requisite*: the program 'xz' needs to be installed on the system.  
-To install it on debian/ubuntu/linux mint, run `apt install xz-utils`.  
-To install it on Redhat/Fedora/CentOS, run `yum -y install xz`.  
+*Pre-requisite*: the program 'xz' needs to be installed on the system.
+To install it on debian/ubuntu/linux mint, run `apt install xz-utils`.
+To install it on Redhat/Fedora/CentOS, run `yum -y install xz`.
 
 ```bash
 export scversion="stable" # or "v0.4.7", or "latest"
@@ -491,6 +491,6 @@ Copyright 2012-2018, Vidar 'koala_man' Holen and contributors.
 Happy ShellChecking!
 
 
-## Other Resources                                                                          
+## Other Resources
 * The wiki has [long form descriptions](https://github.com/koalaman/shellcheck/wiki/Checks) for each warning, e.g. [SC2221](https://github.com/koalaman/shellcheck/wiki/SC2221).
 * ShellCheck does not attempt to enforce any kind of formatting or indenting style, so also check out [shfmt](https://github.com/mvdan/sh)!