Fix broken references to deleted article

Update references in basic-vision-example.rst and working-with-contours.rst to point to the new game-piece-detection.rst article instead of the deleted identifying-and-processing-the-targets.rst file.

Author: jasondaming

source/docs/software/vision-processing/wpilibpi/basic-vision-example.rst

@@ -1,6 +1,6 @@
 # Basic Vision Example
 
-This is an example of a basic vision setup that posts the target's location in the aiming coordinate system described :ref:`here <docs/software/vision-processing/introduction/identifying-and-processing-the-targets:Measurements>` to NetworkTables, and uses CameraServer to display a bounding rectangle of the contour detected. This example will display the framerate of the processing code on the images sent to CameraServer.
+This is an example of a basic vision setup that posts the target's location in the aiming coordinate system described :ref:`here <docs/software/vision-processing/introduction/game-piece-detection:Converting Image Coordinates to Robot Coordinates>` to NetworkTables, and uses CameraServer to display a bounding rectangle of the contour detected. This example will display the framerate of the processing code on the images sent to CameraServer.
 
 .. tab-set-code::
 

source/docs/software/vision-processing/wpilibpi/working-with-contours.rst

@@ -61,7 +61,7 @@ Now that you've found the contour(s) that you want, you now want to get informat
    _, _, rotation = cv2.fitEllipse(contour)
    ```
 
-For more information on how you can use these values, see :ref:`docs/software/vision-processing/introduction/identifying-and-processing-the-targets:Measurements`
+For more information on how you can use these values, see :ref:`docs/software/vision-processing/introduction/game-piece-detection:Converting Image Coordinates to Robot Coordinates`
 
 ## Publishing to NetworkTables