Add useful details to README

summary + install and usage instructions

Author: hmenager

README.md

@@ -1 +1,41 @@
 CWL generator for ACD (EMBOSS) files.
+=====================================
+
+acd2cwl provides:
+- a2c-tools, a generator of wrappers for EMBOSS tools. It uses the formal definition of the tools provided by the ACD files.
+- a2c-tests, a generator of functional tests for these tools. It uses the functional tests defined in the EMBOSS package itself
+
+Install
+-------
+
+Installing the official package from PyPi:
+
+`pip install acd2cwl`
+
+Or from source:
+`
+git clone https://github.com/hmenager/acd2cwl.git
+cd acd2cwl && python setup.py install
+`
+
+Run tool wrappers generator
+---------------------------
+
+Simple command:
+
+`a2c-tools /usr/share/EMBOSS/acd/*.acd`
+
+For more options, just type
+
+`a2c-tools --help`
+
+Run test jobs generator
+-----------------------
+
+Simple command:
+
+`a2c-tests /usr/share/EMBOSS/test/qatest.dat /usr/share/EMBOSS/acd/*.acd`
+
+For more options, just type
+
+`a2c-tests --help`