Start of user documentation

docs/user-documentation/index.md

@@ -1,12 +1,74 @@
 # User documentation
+
+This part of the documentation is meant for end users.   
+For developer documentation, please refer to [this page](developer-documentation/index.html)
+
 ## Getting started with InfiniTime
+
 ### Unboxing your PineTime
+
+The box contains:
+
+- the PineTime,
+- a USB-A charger/craddle,
+- a quick user guide.
+
 ### Boot/Reboot/Switch off InfiniTime
+
+The PineTime has a single button, located on the left hand side.   
+
+- To start/boot your PineTime, simply hold the button for a few seconds until
+  the Pine64 logo appears,
+  - if nothing happens, you may have to charge the watch beforehand.
+- To reboot/restart the watch, press and hold the button for approximately 8
+  seconds
+  - Release the button at that stage, otherwise you will trigger another action
+    (see [Recovery
+    firmware](index.html#firmware-bootloader-recovery-firmware) and [Firmware
+    validation](index.html#firmware-validation)
+    for more details).
+- It is **not** possible to switch it off.
+
 ### Setting up date and time
-#### Manually
+
 #### Using companion apps
+
+Date and time are set by the companion app once the PineTime is connected over
+BLE.
+
+#### Manually
+
+Starting with InfiniTime 1.7, it is possible to configure the date and
+time directly from the watch.
+
+This can be done from the Settings menu, then "Set date" and "Set time"
+respectively:
+
+(insert here pics of IT)
+
 #### Using any Chromium-based web-browser
-#### Using NRFConnectr
+
+You can use [WebBLE](https://hubmartin.github.io/WebBLEWatch/) from a
+Chromium-based browser (Chrome, Chromium, Edge, Chrome Android) to setup the
+date and time.
+
+(insert here pics of WebBLE GH)
+
+#### Using NRFConnect
+
+You must enable the **CTS** *GATT* server into NRFConnect so that InfiniTime can
+synchronize the time with your smartphone.
+
+Launch NRFConnect, tap the sandwich button on the top left and select *Configure
+GATT server*:
+
+Tap *Add service* and select the server configuration *Current Time service*.
+Tap OK and connect to your PineTime, it should automcatically sync the time once
+the connection is established!
+
+(insert pics from
+https://github.com/InfiniTimeOrg/InfiniTime/blob/develop/doc/gettingStarted/ota-gadgetbridge-nrfconnect.md#using-nrfconnect-1)
+
 ### Companion apps
 ### The InfiniTime UI
 ## Flash And Upgrade
@@ -17,4 +79,4 @@
 #### Using Amazfish
 #### Using NRFConnect
 ### Using the SWD interface
-## Firmware validation
+## Firmware validation