#5 - Readme documentation states incorrect ENDPOINT_ROOT path for local hosting

* Update README.md with correct instructions.
* Update development enviornment file with indicitive value for locally hosting react app

Author: rjwats

README.md

@@ -71,7 +71,11 @@ npm start
 
 **NB: To run the interface locally you will need to modify the endpoint root path and enable CORS.**
 
-The endpoint root path can be found in Endpoint.js (./interface/src/constants/). This needs to be the root URL of the device running the back end, for example "http://192.168.0.6".
+The endpoint root path can be found in .env.development, defined as environment variable 'REACT_APP_ENDPOINT_ROOT'. This needs to be the root URL of the device running the back end, for example:
+
+```
+"http://192.168.0.6/rest/".
+```
 
 CORS can be enabled on the back end by uncommenting the -D ENABLE_CORS build flag in platformio.ini and re-deploying.
 

interface/.env.development

@@ -1 +1 @@
-REACT_APP_ENDPOINT_ROOT=http://developer.openobjects.com:8080/ds5-services/endpoint/esp8266/esp8266/esp8266/
+REACT_APP_ENDPOINT_ROOT=http://192.168.0.6/rest/