updating gitignore

.gitignore

@@ -157,4 +157,9 @@ cython_debug/
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
 
-# End of https://www.toptal.com/developers/gitignore/api/python
+# End of https://www.toptal.com/developers/gitignore/api/python
+
+/geojson-files
+/mapbox-images
+*.json
+.DS_Store

README.md

@@ -1,14 +1,12 @@
 ## Python GeoJSON generator from telemetry GPS Coordinates
 
-Turn GoPro telemetry into a video map overlay.
-
-Packages used: geojson, json, os, requests, urllib, argparse
+Use GoPro telemetry to generate a picture-in-picture map.
 
 ## Usage
 
 0. Install required packages `pip3 install -r requirements.txt`
 1. First extract the telemetry file (as json) from your GoPro video using [gopro-telemetry](https://github.com/JuanIrache/gopro-telemetry/). [Detailed instructions about how to do this can be found in this post](https://www.trekview.org/blog/2022/gopro-telemetry-exporter-getting-started/).
-2. Run the `python3 generategeojson.py -f TELEMETRY.json` to create the `.geojson` files from the data set (making sure to replace `TELEMETRY.json` with the telemetry file created at step 1). The resulting `.geojson` files will be saved in the directory `geojson-files/`.
+2. Run the `python3 generategeojson.py -f TELEMETRY.json` to create the `.geojson` files from the data set (making sure to replace `TELEMETRY.json` with the telemetry file created at step 1). This will create of sequentially numbered `.geojson` files for each GPS time/lat/lon in the telemetry file in the directory `geojson-files/`.
 3. The `multiline.geojson` file generated contains the multiline for the entire path in the dataset, and [should be uploaded as a layer for a custom style on MapBox here](https://studio.mapbox.com/styles).
   * Note: This was done to shorten the URL requests as [there is an 8192 character limit](https://docs.mapbox.com/api/overview/#url-length-limits), therefore the entire `.geojson` file for the `LineString` cannot be passed in a single request.
 4. Open the `geojsonrequest.py` and: