Update README with chrony instructions

README.md

@@ -1,2 +1,23 @@
-# Canopy Cloud Robotics Framework
-This is the ROS node for the client-side application.
+# Canopy Client
+This is the ROS node for the client-side application of Canopy.
+
+## Installation
+See the [Canopy docs](http://canopy-docs.readthedocs.io/en/latest/client-docs.html#installation). 
+
+## Time Synchronization
+This section describes the steps for synchronizing timestamps between your Canopy clients and the Canopy server.
+
+Install chrony:
+```
+sudo apt-get install chrony
+```
+
+Modify the chrony configuration file `chrony_canopy_client.conf` to reflect your Canopy server's IP address:
+```
+server 123.45.67.890
+```
+
+Restart chrony with this configuration file:
+```
+sudo chronyd -f <path_to_canopy_client>/chrony_canopy_client.conf
+```