add reference to Anaconda distribution (which also bundles Cython)

docs/src/quickstart/install.rst

 Installing Cython
 =================
 
-Many scientific Python distributions, such as Enthought Canopy
-[Canopy]_, Python(x,y) [Pythonxy]_, and Sage [Sage]_, bundle Cython
-and no setup is needed. Note however that if your distribution ships a
-version of Cython which is too old you can still use the instructions
-below to update Cython. Everything in this tutorial should work with
-Cython 0.11.2 and newer, unless a footnote says otherwise.
+Many scientific Python distributions, such as Anaconda [Anaconda]_,
+Enthought Canopy [Canopy]_, Python(x,y) [Pythonxy]_, and Sage [Sage]_,
+bundle Cython and no setup is needed.  Note however that if your
+distribution ships a version of Cython which is too old you can still
+use the instructions below to update Cython.  Everything in this
+tutorial should work with Cython 0.11.2 and newer, unless a footnote
+says otherwise.
 
 Unlike most Python software, Cython requires a C compiler to be
 present on the system. The details of getting a C compiler varies
@@ -43,9 +44,16 @@ able to fetch Cython from PyPI and install it using::
 
   easy_install cython
 
+or
+
+::
+
+  pip install cython
+
 For Windows there is also an executable installer available for
 download.
 
+.. [Anaconda] http://docs.continuum.io/anaconda/
 .. [Canopy] https://enthought.com/products/canopy/
 .. [Pythonxy] http://www.pythonxy.com/
 .. [Sage] W. Stein et al., Sage Mathematics Software, http://sagemath.org