diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,4 @@
+# Version 0.1.0.0 (31 Dec 2017)
+
+- Initial Commit
+- Support for Union, Difference, Intersection, Symmetric Difference (Disjunction)
diff --git a/README.md b/README.md
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+# Setop: Perform set operations on files
+
+[![build](https://img.shields.io/travis/fmind/setop.svg)](https://travis-ci.org/fmind/setop)
+[![hackage](https://img.shields.io/hackage/v/setop.svg)](https://hackage.haskell.org/package/setop)
+[![hackage-deps](https://img.shields.io/hackage-deps/v/setop.svg)](https://hackage.haskell.org/package/setop)
+[![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/fmind/setop/blob/master/LICENSE.txt)
+ 	
+## Rationale
+
+[Set operations](https://en.wikipedia.org/wiki/Set_(mathematics)#Basic_operations) are a convenient solution to common problems:
+
+- create a list of tasks without duplicates (set union)
+- filter tasks done out of tasks to do (set difference)
+- find common elements in a database (set intersection)
+- and remove theses elements (set symmetric difference)
+
+Setop helps you run these set operations on your files.
+
+## Usage
+
+Let's introduce two line-separated files: `A.txt` and `B.txt`.
+
+`A.txt` contains all numbers from 0 to 5 included
+```text
+0
+1
+2
+3
+4
+5
+```
+
+`B.txt` contains all even numbers from 0 to 8 included
+```text
+0
+2
+4
+6
+8
+```
+
+### Set Union (U/Union):
+
+```bash
+$ setop A.txt U B.txt
+0
+1
+2
+3
+4
+5
+6
+8
+```
+
+### Set Difference (D/Diff):
+
+```bash
+$ setop A.txt D B.txt
+1
+3
+5
+```
+
+### Set Intersection (I/Inter):
+
+```bash
+$ setop A.txt I B.txt
+0
+2
+4
+```
+
+### Set Symmetric Difference (J/Disj):
+
+```bash
+$ setop A.txt J B.txt
+1
+3
+5
+6
+8
+```
+
+### Reading A.txt from STDIN:
+
+```bash
+$ cat A.txt | setop STDIN Diff B.txt
+0
+2
+4
+```
+
+### Reading B.txt from STDIN:
+
+```bash
+$ cat B.txt | setop A.txt Disj STDIN
+1
+3
+5
+6
+8
+```
+
+## Notes
+
+- the resulting set is __sorted in ascending order__
+- some set operations are __not commutative__ (e.g. A Diff B /= B Diff A)
+- Setop is based on [optparse-applicative](https://github.com/pcapriotti/optparse-applicative) and supports [bash/fish/zsh completions](https://github.com/pcapriotti/optparse-applicative#bash-zsh-and-fish-completions)
diff --git a/README.org b/README.org
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--- a/README.org
+++ /dev/null
@@ -1,103 +0,0 @@
-* Setop: Perform set operations on files
-** Rationale
-
-[[https://en.wikipedia.org/wiki/Set_(mathematics)#Basic_operations][Set operations]] are a convenient solution to common problems:
-
-- create a list of tasks without duplicates (set union)
-- filter tasks done out of tasks to do (set difference)
-- find common elements in a database (set intersection)
-- and remove theses elements (set symmetric difference)
-
-Setop helps you run these set operations on your files.
-
-** Usage
-
-Let's introduce two line-separated files: =A.txt= and =B.txt=.
-
-=A.txt= contains all numbers from 0 to 5 included
-#+BEGIN_EXAMPLE
-0
-1
-2
-3
-4
-5
-#+END_EXAMPLE
-
-=B.txt= contains all even numbers from 0 to 8 included
-#+BEGIN_EXAMPLE
-0
-2
-4
-6
-8
-#+END_EXAMPLE
-
-*** Set Union (U/Union):
-
-#+BEGIN_SRC bash
-$ setop A.txt U B.txt
-0
-1
-2
-3
-4
-5
-6
-8
-#+END_SRC`
-
-*** Set Difference (D/Diff):
-
-#+BEGIN_SRC bash
-$ setop A.txt D B.txt
-1
-3
-5
-#+END_SRC`
-
-*** Set Intersection (I/Inter):
-
-#+BEGIN_SRC bash
-$ setop A.txt I B.txt
-0
-2
-4
-#+END_SRC`
-
-*** Set Symmetric Difference (J/Disj):
-
-#+BEGIN_SRC bash
-$ setop A.txt J B.txt
-1
-3
-5
-6
-8
-#+END_SRC`
-
-*** Reading A.txt from STDIN:
-
-#+BEGIN_SRC bash
-$ cat A.txt | setop STDIN Diff B.txt
-0
-2
-4
-#+END_SRC`
-
-*** Reading B.txt from STDIN:
-
-#+BEGIN_SRC bash
-$ cat B.txt | setop A.txt Disj STDIN
-1
-3
-5
-6
-8
-#+END_SRC`
-
-** Notes
-
-- the resulting set is *sorted in ascending order*
-- some set operations are *not commutative* (e.g. A Diff B /= B Diff A)
-- Setop is based on [[https://github.com/pcapriotti/optparse-applicative][optparse-applicative]] and supports [[https://github.com/pcapriotti/optparse-applicative#bash-zsh-and-fish-completions][bash/fish/zsh completions]]
diff --git a/setop.cabal b/setop.cabal
--- a/setop.cabal
+++ b/setop.cabal
@@ -1,5 +1,5 @@
 name:                  setop
-version:               0.1.0.0
+version:               0.1.0.1
 synopsis:              Perform set operations on files.
 description:           Find more information on the project homepage.
 author:                Médéric Hurier <fmind@users.noreply.github.com>
@@ -9,7 +9,8 @@
 bug-reports:           https://github.com/fmind/setop/issues
 license:               MIT
 license-file:          LICENSE.txt
-extra-source-files:    README.org
+extra-source-files:    README.md
+                       CHANGELOG.md
 category:              Tools
 tested-with:           GHC
 build-type:            Simple