diff --git a/README.md b/README.md
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index 0000000..1c17d10
--- /dev/null
+++ b/README.md
@@ -0,0 +1,39 @@
+ods2md
+======
+
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
+Convert LibreOffice Calc Spreadsheets (*.ods) into Markdown tables
+
+![Sample output](sample.png)
+
+Install
+-------
+
+1. Get Python 3.
+
+2. (Optional) Create a virtual environment.
+
+    ```sh
+    python3 -m venv env
+    . env/bin/activate
+    ```
+
+3. Install `ezodf` for parsing *.ods files
+
+    ```sh
+    pip3 -r requirements.txt
+    ```
+
+Usage
+-----
+
+```sh
+./ods2md.py input_file.ods > output_file.md
+```
+
+Limitations
+-----------
+
+* This program disregards all formats. Currencies and percentages will be displayed as plain numbers.
+* Merged cells are not supported, the content will be shown at the first cell (this is actually a limitation of GFM table)
diff --git a/ods2md.py b/ods2md.py
index c25878d..56afa03 100755
--- a/ods2md.py
+++ b/ods2md.py
@@ -1,8 +1,26 @@
 #!/usr/bin/env python3
 
+# Copyright 2015, 2017 Kenny Chan
+#
+# 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.
+
+from __future__ import print_function
+
 import ezodf
 import sys
-import html
 import unicodedata
 
 # Ref: http://stackoverflow.com/a/31666966/224671
diff --git a/requirements.txt b/requirements.txt
index 7463e9e..f8bb0f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-ezodf==0.3.0
-lxml==3.4.4
+ezodf==0.3.2
+lxml==3.7.2
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