add conda-forge package link

Author: carlodri

README.rst

@@ -18,6 +18,9 @@ To install through easy_install or pip::
 
     $ easy_install -U memory_profiler # pip install -U memory_profiler
 
+The package is also available on ```conda-forge`` 
+<https://github.com/conda-forge/memory_profiler-feedstock>`_.
+
 To install from source, download the package, extract and type::
 
     $ python setup.py install