diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..02caa4d
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2008-2013 TJ Holowaychuk <tj@vision-media.ca>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/README.md b/README.md
index 64b9f5f..7689d40 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,14 @@ gem 'iostrust'
 
 # Usage
 
+```ruby
+iostrust add ./cert_1.crt ./cert_2.crt
+```
+## License
+
+This project is available under the MIT license. See LICENSE for details.
+
+
 
 
 
diff --git a/iostrust.gemspec b/iostrust.gemspec
index 9935a1d..7a11be4 100644
--- a/iostrust.gemspec
+++ b/iostrust.gemspec
@@ -9,13 +9,13 @@ Gem::Specification.new do |spec|
   spec.authors       = ["Yannick heinrich"]
   spec.email         = ["yannick.heinrich@gmail.com"]
 
-  spec.summary       = "Tool installing certificate in the trus store of the ios simulators"
+  spec.summary       = "Add certificates in the trust store of the ios simulators"
   spec.description   = %(
-   iostrust install a list of certificate in all the simulators located on your computer.
-   It uses sqlite and openssl from the Ruby stdlib)
+   iostrust installs a list of certificates in all the simulators located on your computer.
+   It uses sqlite and openssl from the Ruby stdlib.)
   spec.homepage      = "https://github.com/yageek/iostrust"
 
-  spec.files         = %w{ README.md } + Dir["lib/**/*.rb"]
+  spec.files         = %w{ README.md LICENSE} + Dir["lib/**/*.rb"]
   spec.executables   = "iostrust"
   spec.require_paths = ["lib"]
 
diff --git a/lib/iostrust/version.rb b/lib/iostrust/version.rb
index 2b7848c..b02e3b9 100644
--- a/lib/iostrust/version.rb
+++ b/lib/iostrust/version.rb
@@ -1,3 +1,3 @@
 module Iostrust
-  VERSION = "0.1.0"
+  VERSION = "1.0.0"
 end