auto

assign4.md

@@ -114,6 +114,8 @@ struct GPXTrack : Codable {
 - Your GPXDocument override both `contents()` and `load()`, and should
   probably have a property that holds a reference to the current track.
 
+[This](assign4Example.gpx436) is an example `GPXTrack` using the default JSON
+serialization to put to a file (use a text editor to look at).
   
   
 ## Additional Task, and Extra Credit
@@ -130,7 +132,7 @@ out of 200 pts):
   extension. Doesn't matter what you write.
 - *Get your app to read and write real gpx files*. Your app should be
   able to write read and write RideWithGPX files. Don't worry, look at
-  [this file](bmwRS1200.gpx) and you will see the format is dirt simple (though
+  [this file](assign4bmwRS1200.gpx) and you will see the format is dirt simple (though
   there may be multiple `trkseg`s).
 - *Show a pre-planned route*. Show the route (w/ a
   different color) from another gpx file as you are recording a ride, so that the rider can