diff --git a/README.rst b/README.rst
index 5b74a25..9d998fc 100644
--- a/README.rst
+++ b/README.rst
@@ -5,24 +5,28 @@ TODO description
 
 Installation
 ============
-The package depends on numpy, scipy, cython and customized version of py_gmm.
-The first three can be obtained by pip, the last one can be obtained from github:
+The package depends on numpy, scipy, cython and GSL (>= 2.0).
+The first three can be obtained by pip. If you have a recent enough OS,
+you can get GSL easily from the repositories; on Debian and derivatives,
+just run `apt-get install libgsl-dev` under root. Alternatively,
+you can `get the source 
+<https://www.gnu.org/software/gsl/>`_ get the source and compile it yourself.
 
-git clone --branch standalone_mie  https://github.com/texnokrates/py_gmm.git 
+After all dependencies are installed, install qpms to your local python library using::
 
-After all dependencies are installed, install qpms to your local python library using
-
-python3 setup.py install --user
+  python3 setup.py install --user
 
 
 Easiest installation ever 
 =========================
 (Just skip those you have already installed.)
 
-pip3 install --user numpy
-pip3 install --user scipy
-pip3 install --user cython
-pip3 install --user git+https://github.com/moble/quaternion.git
-pip3 install --user git+https://github.com/moble/spherical_functions.git
-pip3 install --user git+https://github.com/texnokrates/py_gmm.git@standalone_mie
-python3 setup.py install --user
+::
+
+  pip3 install --user numpy
+  pip3 install --user scipy
+  pip3 install --user cython
+  pip3 install --user git+https://github.com/moble/quaternion.git
+  pip3 install --user git+https://github.com/moble/spherical_functions.git
+  python3 setup.py install --user
+