more work on readme

README.md

@@ -1,8 +1,8 @@
 # ESP8266 React
 
-A simple, extensible framework for IoT projects built on ESP8266/ESP32 platforms with responsive React front-end.
+A simple, secure and extensible framework for IoT projects built on ESP8266/ESP32 platforms with responsive React front-end.
 
-Designed to work with the PlatformIO IDE with limited setup, please read below for build and upload instructions.
+Designed to work with the PlatformIO IDE with [limited setup](#getting-started). Please read below for setup, build and upload instructions.
 
 ![Screenshots](/media/screenshots.png?raw=true "Screenshots")
 
@@ -10,7 +10,7 @@ Designed to work with the PlatformIO IDE with limited setup, please read below f
 
 Provides many of the features required for IoT projects:
 
-* Configurable WiFi - Network scanner and WiFi connection screen
+* Configurable WiFi - Network scanner and WiFi configuration screen
 * Configurable Access Point - Can be continuous or automatically enabled when WiFi connection fails
 * Network Time - Synchronization with NTP
 * Remote Firmware Updates - Enable secured OTA updates
@@ -43,7 +43,7 @@ Resource | Description
 [src/](src) | C++ back end for the ESP8266 device
 [platformio.ini](platformio.ini) | PlatformIO project configuration file
 
-#### Building the firmware
+### Building the firmware
 
 Once the platform and libraries are downloaded the back end should be compiling.
 
@@ -51,18 +51,18 @@ Once the platform and libraries are downloaded the back end should be compiling.
 
 #### Uploading the firmware
 
-Standard configuration settings, such as build flags, libraries and device configuration can be found in ['platformio.ini'](platformio.ini). The project is configured to upload via serial by default, you can change the upload mechanism to OTA by uncommenting the relevant lines. 
+The project is configured to upload over a serial connection by default. You can change this to use OTA updates by uncommenting the relevant lines in ['platformio.ini'](platformio.ini). 
 
-See the [PlatformIO docs](http://docs.platformio.org/en/latest/projectconf.html) for full details on what you can do with this.
+The firmware may be uploaded to the device by pressing the "Upload" button:
 
-Click the upload button in PlatformIO, or type the upload command if prefer the command line approach:
+![uploadfw](/media/uploadfw.png?raw=true "uploadfw")
+
+Alternatively run the 'upload' target:
 
 ```bash
 platformio run -t upload
 ```
 
-![upload](/media/upload.png?raw=true "upload")
-
 ### Building the interface
 
 The interface has been configured with create-react-app and react-app-rewired so the build can customized for the target device. The large artefacts are gzipped and source maps and service worker are excluded from the production build. This reduces the production build to around ~200k, which easily fits on the device.
@@ -89,9 +89,21 @@ npm run build
 
 > **Note**: The build command will also delete the previously built interface, in the ['data/www'](data/www) directory, replacing it with the freshly built one ready to upload to the device.
 
+#### Uploading the file system image
+
+The compiled user interface may be uploaded to the device by pressing the "Upload File System image" button:
+
+![uploadfs](/media/uploadfs.png?raw=true "uploadfs")
+
+Alternatively run the 'uploadfs' target:
+
+```bash
+platformio run -t uploadfs
+```
+
 ### Running the interface locally
 
-You can run a local development server during development to preview changes to the front end them without the need to upload a file system image to the device after each change.
+You can run a local development server to allow you preview changes to the front end without the need to upload a file system image to the device after each change. Run the standard npm start command to start the development server:
 
 ```bash
 npm start