Updated readme content

Author: nikhilk

README.md

@@ -1,2 +1,18 @@
-# samples
-TensorFX samples
+# TensorFX samples
+
+This repository contains the latest set of samples demonstrating using TensorFX
+to train and predict with TensorFlow models.
+
+In order to run the samples, you'll need to install a few python libraries. The
+recommendation is to use [Miniconda](https://conda.io/miniconda.html) for your
+Python environment, and optionally use a conda virtual environment to isolate
+installations. In your environment, run the following commands:
+
+    pip install tensorflow
+    pip install tensorfx
+
+
+## Classification
+
+* [Census](./census)
+