Update install documentation

Author: Marco Paolini

README.rst

@@ -11,20 +11,25 @@ Still **EXPERIMENTAL**
 Installing
 ----------
 
-Prerequisites:
+Precompiled wheels are usually available on github https://github.com/elastic-coders/py-graphqlparser/releases/
 
-- Install ``cython``
-- Download and build ``libgraphqlparser``
+Make sure you pick the right wheel for your platform and python version, then install them using pip::
+
+  pip install https://github.com/elastic-coders/py-graphqlparser/releases/download/v0.0.3/graphqlparser-0.0.3-cp27-none-linux_x86_64.whl
 
 
-Install using pip
+Installing from source is a bit more complex. The main steps are
 
+- Install ``cython``
+- Download and build ``libgraphqlparser``
 - set an env var ``$GRAPHQL_HOME`` to the folder where libgraphqlparser is
-- ``LDFLAGS="-L$GRAPHQL_HOME" CFLAGS="-I$GRAPHQL_HOME/c -I$GRAPHQL_HOME" pip install graphqlparser``
+- compile with::
 
+    LDFLAGS="-L$GRAPHQL_HOME" CFLAGS="-I$GRAPHQL_HOME/c -I$GRAPHQL_HOME" pip install graphqlparser
 
-Building from source
---------------------
+
+Building from source checkout
+-----------------------------
 
 Needed to rebuild the generate cython files from the libgraphql AST
 
@@ -34,9 +39,13 @@ Needed to rebuild the generate cython files from the libgraphql AST
 - generate source code with ``python ast/build_ast.py``
 - you can now switch to python 3
 - install ``cython``
-- run ``LDFLAGS="-L./libgraphqlparser" CFLAGS="-Ilibgraphqlparser/c -Ilibgraphqlparser" python setup.py build_ext``
+- run::
+
+    LDFLAGS="-L./libgraphqlparser" CFLAGS="-Ilibgraphqlparser/c -Ilibgraphqlparser" python setup.py build_extx
+
+
+To create a wheel distribution:
 
-To package with wheel:
 - install wheel: ``pip install wheel``
 - create wheelhouse ``mkdir .wheelhouse``
 - build with ``pip wheel --wheel-dir=.wheelhouse .``
@@ -60,5 +69,4 @@ Known issues
 TODO
 ----
 
-- make wheels available on github
 - build more wheel packages for linux 32 bit and other platforms