Link to FIRST's official tag pdf (#249)

* Link to FIRST's official tag pdf

* Update april-tags.rst

Co-authored-by: Matt <[email protected]>

Author: shueja

source/docs/getting-started/april-tags.rst

@@ -14,7 +14,7 @@ AprilTags are a type of visual fiducial marker that is commonly used within robo
 
 A more technical explanation can be found in the `WPILib documentation <https://docs.wpilib.org/en/latest/docs/software/vision-processing/apriltag/apriltag-intro.html>`_.
 
-.. note:: You can get a PDF of properly sized 16h5 targets `here <https://github.com/Tigerbotics7125/AprilTag16h5>`_.
+.. note:: You can get FIRST's `official PDF of the targets used in 2023 here <https://firstfrc.blob.core.windows.net/frc2023/FieldAssets/TeamVersions/AprilTags-UserGuideandImages.pdf>`_.
 
 Getting Started With AprilTags
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^