Removed empty tag from the metadata

Removed empty tag from the metadata

Author: jhansson-ard

Diff for: content/hardware/01.mkr/01.boards/mkr-wifi-1010/tutorials/mkr-battery-app-note/mkr-battery-app-note.md

@@ -2,11 +2,9 @@
 title: 'MKR WiFi 1010 Battery Application Note'
 difficulty: intermediate
 description: 'Learn about different topics related to batteries, and how to choose the correct battery for you MKR application.'
-
 tags:
   - Battery
   - MKR
-  - 
 author: 'Ali Jahangiri'
 hardware:
   - hardware/01.mkr/01.boards/mkr-wifi-1010
@@ -340,4 +338,4 @@ In this Application Note, you have gained an understanding of how the batteries
 
 - Try disabling the charging circuit with `disableCharge()` in order to read the battery voltage, while it isn't charging
 - Try experimenting with different battery capacities, and see how long it can power your application.
-- Send a just the `voltBat` over the serial and use the Serial Plotter to view the values as a graph.
+- Send a just the `voltBat` over the serial and use the Serial Plotter to view the values as a graph.