Updated README.rst.

README.rst

@@ -41,22 +41,26 @@ Features
 
 Installation
 ------------
-* Use the pip-Installer:
 
-    pip install git+https://gitext.gfz-potsdam.de/danschef/py_tools_ds.git   # for HTTPS authentification
+py_tools_ds depends on some open source packages which are usually installed without problems by the automatic install
+routine. However, for some projects, we strongly recommend resolving the dependency before the automatic installer
+is run. This approach avoids problems with conflicting versions of the same software.
+Using conda_, the recommended approach is:
 
-    pip install git+git@gitext.gfz-potsdam.de:danschef/py_tools_ds.git   # for SSH-Key authentification
+ .. code-block:: console
 
+    # create virtual environment for py_tools_ds, this is optional
+    conda create -y -q --name py_tools_ds python=3
+    source activate py_tools_ds
+    conda install -y -q -c conda-forge numpy gdal scikit-image pyproj rasterio shapely
 
-* Or clone the repository via GIT and update the PATH environment variable:
+* To install py_tools_ds, use the pip installer:
 
-    cd /your/installation/folder
-
-    git clone https://danschef@gitext.gfz-potsdam.de/danschef/py_tools_ds.git
-
-    PATH=$PATH:~/path/to/your/installation/folder/py_tools_ds
+ .. code-block:: console
 
+    pip install py_tools_ds
 
+Before running py_tools_ds, make sure your GDAL_DATA environment variable is set!
 
 Credits
 -------
@@ -66,4 +70,4 @@ This package was created with Cookiecutter_ and the `audreyr/cookiecutter-pypack
 .. _Cookiecutter: https://github.com/audreyr/cookiecutter
 .. _`audreyr/cookiecutter-pypackage`: https://github.com/audreyr/cookiecutter-pypackage
 .. _coverage: http://danschef.gitext.gfz-potsdam.de/py_tools_ds/coverage/
-
+.. _conda: https://conda.io/docs/