[incubator-datasketches-cpp] branch python_readme updated: Update README.md

[jm...@apache.org]

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The following commit(s) were added to refs/heads/python_readme by this push:
     new dbaa743  Update README.md
dbaa743 is described below

commit dbaa7431d90470df6dc17f60d08dc31ae9e39966
Author: Jon Malkin <jm...@users.noreply.github.com>
AuthorDate: Wed Jul 3 16:09:25 2019 -0700

    Update README.md
---
 python/README.md | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/python/README.md b/python/README.md
index e80719f..867aad9 100644
--- a/python/README.md
+++ b/python/README.md
@@ -1,8 +1,22 @@
 # Python Wrapper for Datasketches
 
+## Installation
+
+The easiest way to install the python wrapper is to run
+```pip install git+https://github.com/apache/incubator-datasketches-cpp.git```
+
+If you prefer to downlioad the source first, be sure to clone the repo with `--recursive` to ensure you get the python binding library ([pybind11](https://github.com/pybind/pybind11)):
+```
+git clone --recursive https://github.com/apache/incubator-datasketches-cpp.git
+cd incubator-datasketches-cpp
+pip install .
+```
+
+In the event you do not have `pip` installed, you can invoke the setup script directly by replacing the last line above with `python3 setup.py install`.
+
 ## Usage
 
-Having followed installation instructions in the root directory, loading the Datasketches library in Python is simple: `from datasketches import *`.
+Having installed the library, loading the Datasketches library in Python is simple: `from datasketches import *`.
 
 ## Available Sketch Classes
 


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