Add zipfile support to README

And enhance CHANGELOG.

[#12]

CHANGELOG.md

@@ -15,6 +15,11 @@
 - Add `Serializers` to dump trie into/load trie from disk
   [#10][github_issue_10] by [@gonzedge][github_user_gonzedge]
 
+    - Supported formats include Ruby's `Marshal` (`.marshal`) and `YAML`
+      (`.yaml` or `.yml`)
+    - The format to use is determined by the filepath extension and
+      `Marshal` is used when a format isn't recognized.
+
     ``` ruby
     # Save `your_trie` into a file
     Rambling::Trie.dump your_trie, 'a filename'
@@ -23,6 +28,12 @@
     trie = Rambling::Trie.load 'a filename'
     ```
 
+- Add `Serializers::Zip` to handle zip files by
+  [@gonzedge][github_user_gonzedge]
+
+    Automatically detects `.marshal` and `.yaml` files, as well as any
+    configured `Serializer` based on filepath extension
+
 - Add ability to configure `rambling-trie` [#11][github_issue_11]
   by [@gonzedge][github_user_gonzedge]
 
@@ -44,6 +55,8 @@
     Contained in `Rambling::Trie::Comparable` module. Two nodes are equal to
     each other if they have the same letter, they are both either terminal or
     non-terminal and their children tree is the same
+- Add changelog by [@gonzedge][github_user_gonzedge]
+- Add contributing guide by [@gonzedge][github_user_gonzedge]
 
 #### Minor
 
@@ -349,7 +362,8 @@
   [@gonzedge][github_user_gonzedge]
 - Replace instance variables with attr accessors/writers by
   [@gonzedge][github_user_gonzedge]
-      Including `#letter`, `#children`, `#terminal`
+
+    Including `#letter`, `#children`, `#terminal`
 
 #### Minor
 
@@ -364,6 +378,7 @@
 - Remove deprecated `Rambling::Trie.new` entry point by
   [@gonzedge][github_user_gonzedge]
 - Remove deprecated methods by [@gonzedge][github_user_gonzedge]
+
     Includes `#has_branch_for?`, `#is_word?` and `#add_branch_from`
 
 ### Enhancements
@@ -401,6 +416,7 @@
 - Add `Enumerable` capabilities [#5][github_issue_05] by
   [@gonzedge][github_user_gonzedge]
 - Restructure file/directory tree again by [@gonzedge][github_user_gonzedge]
+
     Files now live under `lib/rambling/trie` instead of `lib/rambling-trie`
 
 #### Minor

README.md

@@ -150,7 +150,32 @@ Currently, these formats are supported to store tries on disk:
 - Ruby's [binary (Marshal)][marshal] format
 - [YAML][yaml]
 
-When dumping into or loading from disk, the format is determined automatically based on the file extension.
+> When dumping into or loading from disk, the format is determined
+> automatically based on the file extension, so `.yml` or `.yaml` files will be
+> handled through `YAML` and `.marshal` files through `Marshal`.
+
+Optionally, you can use a `.zip` version of the supported formats. In order to do so, you'll have to install the [`rubyzip`][rubyzip] gem:
+
+``` bash
+gem install rubyzip
+```
+
+Or, include it in your `Gemfile` and bundle it:
+
+``` ruby
+gem 'rubyzip'
+```
+
+Then, you can load contents form a `.zip` file like this:
+
+``` ruby
+require 'zip'
+trie = Rambling::Trie.load trie, '/path/to/file.zip'
+```
+
+> For `.zip` files, the format is also determined automatically based on the
+> file extension, so `.yml.zip` or `.yaml.zip` files will be handled through
+> `YAML` after decompression and `.marshal.zip` files through `Marshal`.
 
 ### Configuration
 
@@ -236,6 +261,7 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
 [rbenv]: https://github.com/sstephenson/rbenv
 [rubydoc]: http://rubydoc.info/gems/rambling-trie
 [rubydoc_github]: http://rubydoc.info/github/gonzedge/rambling-trie
+[rubyzip]: https://github.com/rubyzip/rubyzip
 [rvm]: https://rvm.io
 [travis_ci_badge]: https://travis-ci.org/gonzedge/rambling-trie.svg
 [travis_ci_link]: https://travis-ci.org/gonzedge/rambling-trie