Update map-matching documentation to include match command

Author: easbar

map-matching/README.md

@@ -11,14 +11,24 @@ See the demo in action (black is GPS track, green is matched result):
 
 ### Web app
 
-To install GraphHopper see [these instructions](../README.md#installation). After the import process finished you can access a simple map matching UI via `http://localhost:8989/maps/map-matching/` (including the trailing slash).
+To install GraphHopper and start the GraphHopper server see [these instructions](../README.md#installation). After the import process finished you can access a simple map matching UI via `http://localhost:8989/maps/map-matching/` (including the trailing slash). Note that for map-matching you need a version 3.0 or higher so you probably need to build from source currently.
 
 You can post GPX files and get back snapped results as GPX or as JSON. An example curl request is:
 ```bash
-curl -XPOST -H "Content-Type: application/gpx+xml" -d @web/src/test/resources/test1.gpx "localhost:8989/match?vehicle=car&type=json"
+curl -XPOST -H "Content-Type: application/gpx+xml" -d @web/src/test/resources/test1.gpx "localhost:8989/match?profile=car&type=json"
 ```
 
-#### Java usage
+### CLI usage
+
+You can also use map-matching via the command line without running the GraphHopper server. The usage is very similar to the GraphHopper server. You need a configuration file and running the `match` command will either use existing GraphHopper files or trigger a new import. Use the `match` command like this for example:
+
+```bash
+java -jar graphhopper-web-3.0-SNAPSHOT.jar match --file config.yml --profile car web/src/test/resources/*.gpx
+```
+
+where the argument after `-jar` is the GraphHopper jar that you need to build from source or download (3.0 or higher). The profile is chosen via the `--profile` option and the GPX files are specified after the last option. In the above example we use all GPX files found in the test resources.
+
+### Java usage
 
 Have a look at `MapMatchingResource.java` to see how the web service is implemented on top
 of library functions to get an idea how to use map matching in your own project.