docs: auto-sync metadata [skip ci]

Co-Authored-By: PX4 BuildBot <bot@px4.io>

docs/en/flying/first_flight_guidelines.md

@@ -1,6 +1,6 @@
 # First Flight Guidelines
 
-Learning to fly is a lot of fun! 
+Learning to fly is a lot of fun!
 These guidelines are designed to ensure that your first flight experience is enjoyable, educational, and safe.
 
 ## Know the Law
@@ -10,10 +10,10 @@ Familiarise yourself with the flight regulations in your area.
 
 ## Select a Good Location
 
-Selecting the right location for your first flight is critical. 
+Selecting the right location for your first flight is critical.
 The main things to look for are:
 
-- Make sure the space is open. 
+- Make sure the space is open.
   There should be no high trees, hills or buildings nearby, because those will impair the GNSS reception.
 - Make sure no people are within 100 m (300 feet).
 - Make sure there is nothing that you shouldn't crash onto within 100 m - no houses, structures, cars, water, corn fields (hard to find drones in).
@@ -24,12 +24,12 @@ The main things to look for are:
 
 ## Bring a Pro
 
-Bring someone with experience for your first flight. 
+Bring someone with experience for your first flight.
 Get them to help you to run through the pre-flight checks and let them intervene if something goes wrong!
 
 ## Plan the Flight
 
-Plan the flight before taking off. 
+Plan the flight before taking off.
 Make sure you know the whole route and where/how the vehicle will land.
 
 ## Limit the Damage