Fix typo in docs/command output

Author: wikando-ck

README.md

@@ -77,7 +77,7 @@ composer diff --help # Display detailed usage instructions
  - `--with-licenses` (`-c`) - include license information
  - `--format` (`-f`) - output format (mdtable, mdlist, json, github) - default: `mdtable`
  - `--gitlab-domains` - custom gitlab domains for compare/release URLs - default: use composer config
- 
+
 ## Advanced usage
 
 ```shell script
@@ -100,15 +100,15 @@ Exit code of the command is built using following bit flags:
 *  `0` - OK.
 *  `1` - General error.
 *  `2` - There were changes in prod packages.
-*  `4` - There were changes is dev packages.
+*  `4` - There were changes in dev packages.
 *  `8` - There were downgrades in prod packages.
 * `16` - There were downgrades in dev packages.
 
 You may check for individual flags or simply check if the status is greater or equal 8 if you don't want to downgrade any package.
 
 # Contributing
 
-Composer Diff is an open source project that welcomes pull requests and issues from anyone. 
+Composer Diff is an open source project that welcomes pull requests and issues from anyone.
 Before opening pull requests, please consider reading our short [Contribution Guidelines](docs/CONTRIBUTING.md).
 
 # Similar packages

src/Command/DiffCommand.php

@@ -80,31 +80,31 @@ protected function doConfigure()
 To compare with specific branch, pass its name as argument:
 
     <info>%command.full_name% master</info>
-    
+
 You can specify any valid git refs to compare with:
 
     <info>%command.full_name% HEAD~3 be4aabc</info>
-    
+
 You can also use more verbose syntax for <info>base</info> and <info>target</info> options:
 
     <info>%command.full_name% --base master --target composer.lock</info>
-    
+
 To compare files in specific path, use following syntax:
 
     <info>%command.full_name% master:subdirectory/composer.lock /path/to/another/composer.lock</info>
-    
+
 By default, <info>platform</info> dependencies are hidden. Add <info>--with-platform</info> option to include them in the report:
- 
+
     <info>%command.full_name% --with-platform</info>
-    
+
 By default, <info>transient</info> dependencies are displayed. Add <info>--direct</info> option to only show direct dependencies:
 
 <info>%command.full_name% --direct</info>
 
 Use <info>--with-links</info> to include release and compare URLs in the report:
 
     <info>%command.full_name% --with-links</info>
-    
+
 You can customize output format by specifying it with <info>--format</info> option. Choose between <comment>mdtable</comment>, <comment>mdlist</comment> and <comment>json</comment>:
 
     <info>%command.full_name% --format=json</info>
@@ -125,7 +125,7 @@ protected function doConfigure()
 *  0 - OK.
 *  1 - General error.
 *  2 - There were changes in prod packages.
-*  4 - There were changes is dev packages.
+*  4 - There were changes in dev packages.
 *  8 - There were downgrades in prod packages.
 * 16 - There were downgrades in dev packages.
 EOF