Add mode cli flag that accepts inclusive, exclusive or additive options.

README.md

@@ -2,6 +2,7 @@
 
 [![Build Status](https://travis-ci.org/d0x2f/CloverMerge.svg?branch=master)](https://travis-ci.org/d0x2f/CloverMerge)
 [![Coverage Status](https://coveralls.io/repos/github/d0x2f/CloverMerge/badge.svg?branch=master)](https://coveralls.io/github/d0x2f/CloverMerge?branch=master)
+[![Maintainability](https://api.codeclimate.com/v1/badges/7ff86933961de446d594/maintainability)](https://codeclimate.com/github/d0x2f/CloverMerge/maintainability)
 
 PHP utility to merge two or more clover files into a single document.
 
@@ -11,25 +12,48 @@ I spent a weekend writing this so you don't have to.
 
 # Install
 
-```
+## As a Composer Dependancy
+
+```bash
 $ composer require d0x2f/clover-merge
 ```
 
+## As a Docker Image
+
+```bash
+$ docker pull d0x2f/clover-merge
+```
+
 # Usage
 
 ```
 usage: clover-merge [<options>] [<args>]
 
 OPTIONS
   --help, -?     Display this help.
+  --mode, -m     merge mode: additive, exclusive or inclusive (default)
   --output, -o   output file path
 
 ARGUMENTS
   paths   input file paths
 ```
 
+## Modes
+
+* Additive - Lines must be present in the first input file for them to be included.
+* Exclusive - Lines must be present in all input files for them to be included.
+* inclusive - Lines from all files are included.
+
 # Example
 
+## As a Composer Dependancy
+
 ```bash
 $ ./vendor/bin/clover-merge -o combined.xml input1.xml input2.xml
+```
+
+## As a Docker Image
+
+```bash
+$ docker run --rm -v (pwd)/build:/build clover-merge -o /build/combined.xml /build/input1.xml /build/input2.xml
 ```