Add Gemfile.

Gemfile

@@ -0,0 +1,2 @@
+source "https://rubygems.org"
+gemspec

README.md

@@ -4,7 +4,7 @@ jekyll-jalali
 This plugin adds a new filter to Jekyll called `jdate`. Using this filter the given dates will be converted to Jalali which is being used in Iran and Afghanistan. For more information see [Iranian Calendars Entry](http://en.wikipedia.org/wiki/Iranian_calendars) in Wikipedia.
 
 
-#Requirements
+# Requirements
 This plugin uses `jalalidate` gem in background, therefore the following section should be added to `_config.yml`:
 ```
 gems:
@@ -13,11 +13,11 @@ gems:
 
 see [https://github.com/aziz/jalalidate](https://github.com/aziz/jalalidate).
 
-#Installation
+# Installation
 
 Simply, put the ``jdate.rb`` into ``_plugins`` directory on your site's root.
 
-#Usage
+# Usage
 ```{{ page.date | jdate: "%A %d %b %Y"}}```
 
 *jdate* accepts valid formatting parameters according to *jalalidate* Ruby gem.

jekyll-jalali.gemspec

@@ -0,0 +1,15 @@
+# coding: utf-8
+
+Gem::Specification.new do |spec|
+  spec.name          = "jekyll-jalali"
+  spec.version       = "0.1.0"
+  spec.authors       = ["Mehdi Sadeghi"]
+  spec.email         = ["[email protected]"]
+  spec.summary       = %q{Jalali date plugin for Jekyll.}
+  spec.homepage      = "https://github.com/mehdisadeghi/jekyll-jalali"
+  spec.license       = "MIT"
+  spec.files         = ["lib/jekyll-jalali.rb"]
+  spec.add_runtime_dependency "jalalidate", "~> 0.3"
+  spec.add_development_dependency "bundler", "~> 1.12"
+  spec.add_development_dependency "rake", "~> 10.0"
+end