update ug

en/userguide/_index.md

@@ -6,11 +6,11 @@ title: User Guide
 
 The user guide of the card10 is divided into a few sections. Here is an overview of the different sections and what they cover:
 
-### [Assembly](assembly):
+### [Assembly](assembly)
  - Assembly video
  - Instructions how to assemble the card10
 
-### [General usage](general-usage):
+### [General usage](general-usage)
  - [Buttons](general-usage#buttons)
  - [Powering on](general-usage#powering-on)
  - [Expected run time](general-usage#expected-run-time)
@@ -30,22 +30,22 @@ The user guide of the card10 is divided into a few sections. Here is an overview
  - [Using the light sensor with Phyphox](ble#using-the-light-sensor-with-phyphox)
  - [Using characteristics via BLE](ble#using-characteristics-via-ble)
 
-### [The menu system](menu-system):
+### [The menu system](menu-system)
 - [Selecting a default app](menu-system#selecting-a-default-app)
 - [Changing the button layout](menu-system#changing-the-button-layout)
 
-### [Using the card10 as a watch](watch):
+### [Using the card10 as a watch](watch)
 - Setting the time without BLE
 - Setting the time with BLE
 - Apps which implement watch features
 
-### [Using the card10's ECG functionality](ecg):
+### [Using the card10's ECG functionality](ecg)
 - Configuring the ECG app correctly
 - Using it correctly
 - Taking a recording
 - Installing wired connections
 
 
-### [Cases](cases):
+### [Cases](cases)
 - 3D printed cases
 - Other variants