Merge pull request #80 from ruby-docx/release-v0.4

Release v0.4

Author: satoryu

CHANGELOG.md

@@ -0,0 +1,13 @@
+# Changelog
+
+## v0.4.0
+
+### Enhancements
+
+- Implement substitute method on TextRun class. [#75](https://github.com/ruby-docx/docx/pull/75)
+
+### Improvements
+
+- Updates dependencies. [#72](https://github.com/ruby-docx/docx/pull/72), [#77](https://github.com/ruby-docx/docx/pull/77)
+- Fix: #paragraphs grabs paragraphs in tables. [#76](https://github.com/ruby-docx/docx/pull/76)
+- Updates supported ruby versions. [#78](https://github.com/ruby-docx/docx/pull/78)

README.md

@@ -4,11 +4,29 @@ A ruby library/gem for interacting with `.docx` files. currently capabilities in
 
 ## Usage
 
+### Prerequisites
+
+- Ruby 2.4 or later
+
 ### Install
 
-Requires ruby (tested with 2.1.1)
+Add the following line to your application's Gemfile:
+
+```ruby
+gem 'docx'
+```
+
+And then execute:
 
-    gem 'docx', '~> 0.3.0'
+```shell
+bundle install
+```
+
+Or install it yourself as:
+
+```shell
+gem install docx
+```
 
 ### Reading
 
@@ -61,7 +79,7 @@ doc.tables.each do |table|
       puts cell.text
     end
   end
-  
+
   table.columns.each do |column| # Column-based iteration
     column.cells.each do |cell|
       puts cell.text

lib/docx/version.rb

@@ -1,3 +1,3 @@
 module Docx #:nodoc:
-  VERSION = '0.3.0'
+  VERSION = '0.4.0'
 end