add more videos to aurora90/100 pages

input/projects/quadcopters/aurora100.md

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 Here are some recordings of the FPV footage.
+Be aware that these videos are recorded from the received signal on the ground.
+Not only can you see lots of interference and other HF problems, the loss of quality from the video recorder and the YouTube encoding is also very noticeable.
+In real-life, the picture doesn't look *that* bad.
 
 <!--%
 lightgallery([
+    [ "https://www.youtube.com/watch?v=MnF7B3rD5VM", "img/xyaurora100_crash_thumb.jpg", "Aurora100 flight with crash" ],
     [ "https://www.youtube.com/watch?v=798ncBkBHos", "img/xyaurora100_owl_thumb.jpg", "Micro Quadcopter attacked by Owl" ]
 ])
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input/projects/quadcopters/aurora90.md

 
 <span class="listdesc">[...back to RC-Vehicles overview](quadcopters.html)</span>
 
+The build started at the end of January 2017 and it was my main copter for flights indoors and outside in the garden for a long time.
+
 <!--%
 lightgallery([
     [ "img/xyaurora90_5.png", "Front left view" ],
 %-->
 
 Here are some recordings of the FPV footage.
+Be aware that these videos are recorded from the received signal on the ground.
+Not only can you see lots of interference and other HF problems, the loss of quality from the video recorder and the YouTube encoding is also very noticeable.
+In real-life, the picture doesn't look *that* bad.
 
 <!--%
 lightgallery([
     [ "https://www.youtube.com/watch?v=VFPxYdl7hg0", "img/xyaurora90_firsttest_thumb.jpg", "First Brushless 90mm Quadcopter Testflight" ],
     [ "https://www.youtube.com/watch?v=V3l-RCW24_U", "img/xyaurora90_robocup_thumb.jpg", "Robocup German Open 2017 @Home Area Flyaround" ],
+    [ "https://www.youtube.com/watch?v=NqrONv2KYJw", "img/xyaurora90_test_flight_thumb.jpg", "Aurora90 test flight, crash and prop loss" ],
     [ "https://www.youtube.com/watch?v=b4heuNomMTk", "img/xyaurora90_wrong_channel_thumb.jpg", "Wrong FPV Channel" ]
 ])
 %-->
 
-The build started at the end of January 2017 and it was my main copter for flights indoors and outside in the garden for a long time.
-
 Initially I was worried about the **receiver** I'm using.
 I have an old modified transmitter with an FrSky DHT module, so I can only use D8-mode FrSky-compatible receivers.
 For another copter I've tried the RX-F802 but it had some problems with signal loss and improper failsafe behavior.