Update README in web socket example (#48)

* Update README in web socket example

* Fix formatting

Co-authored-by: Sam Raeburn <sam@rti.com>

Author: samuelraeburn

examples/nodejs/web_socket/README.md

@@ -11,7 +11,9 @@ on how it should visualise the data. There are the following visualisation are a
 ## Dependencies
 This example requires additional packages:
 * [socket.io](https://www.npmjs.com/package/socket.io)
+  * Note: Node.js v13.6.x is incomaptible with socket.io.
 * [ol](https://www.npmjs.com/package/ol)
+
 These additional dependencies can be installed using `npm install socket.io@^3.0.4 ol@^6.4.3`
 
 ## Running the example
@@ -20,7 +22,7 @@ These additional dependencies can be installed using `npm install socket.io@^3.0
 [RTI Shapes Demo](https://www.rti.com/free-trial/shapes-demo) and create a *Square*
 publisher.
 * Run the web server `node ./reader_websocket.js`
-* In a browser, navigate to [http:/localhost:7400](http://127.0.0.1:7400)
+* In a browser, navigate to [http:/127.0.0.1:7400](http://127.0.0.1:7400)
 * Select how you would like to visualize the data (simple or maps).
-* Navigating to [http://localhost:7400/simple](http://localhost:7400/simple) will show the simple visualisation, [http://localhost:7400/maps](http://localhost:7400/maps) will show the maps visualisation and [http://localhost:7400/chart](http://localhost:7400/chart) will show the chart visualisation.
-  * Note: The simple visualizasion may not work in the Safari browser.
+* Navigating to [http://127.0.0.1:7400/simple](http://127.0.0.1:7400/simple) will show the simple visualisation, [http://127.0.0.1:7400/maps](http://127.0.0.1:7400/maps) will show the maps visualisation and [http://127.0.0.1:7400/chart](http://127.0.0.1:7400/chart) will show the chart visualisation.
+  * Note: The simple visualization may not work in the Safari browser.