Delete second link to example data file as it is the same

Author: SabineHaas

README.rst

@@ -59,8 +59,6 @@ Further functionalities, like the modelling of wind farms and wind turbine clust
 
  * `TurbineClusterModelChain example (Python script) <https://raw.githubusercontent.com/wind-python/windpowerlib/master/example/turbine_cluster_modelchain_example.py>`_
  * `TurbineClusterModelChain example (Jupyter notebook) <https://raw.githubusercontent.com/wind-python/windpowerlib/master/example/turbine_cluster_modelchain_example.ipynb>`_
- * `Example data file <https://raw.githubusercontent.com/wind-python/windpowerlib/master/example/weather.csv>`_
-
 
 Contributing
 ==============

doc/getting_started.rst

@@ -58,7 +58,6 @@ Further functionalities, like the modelling of wind farms and wind turbine clust
 
  * :download:`TurbineClusterModelChain example (Python script) <../example/turbine_cluster_modelchain_example.py>`
  * :download:`TurbineClusterModelChain example (Jupyter notebook) <../example/turbine_cluster_modelchain_example.ipynb>`
- * :download:`Example data file <../example/weather.csv>`
 
 You can also look at the examples in the :ref:`examples_section_label` section.