Added more tests for Mapbox API tokens

README.md

@@ -382,6 +382,12 @@ Mapbox secret keys start with `sk`, rest start with `pk` (public token), `sk` (s
 
 ```
 curl "https://api.mapbox.com/geocoding/v5/mapbox.places/Los%20Angeles.json?access_token=ACCESS_TOKEN"
+
+#Check token validity
+curl "https://api.mapbox.com/tokens/v2?access_token=YOUR_MAPBOX_ACCESS_TOKEN"
+
+#Get list of all tokens associated with an account. (only works if the token is a Secret Token (sk), and has the appropiate scope)
+curl "https://api.mapbox.com/tokens/v2/MAPBOX_USERNAME_HERE?access_token=YOUR_MAPBOX_ACCESS_TOKEN"
 ```
 
 ## [Salesforce API key](https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/quickstart_oauth.htm)