Merge pull request #162 from mapbox/token2

Consistify `YOUR_SECRET_MAPBOX_ACCESS_TOKEN`

Author: Dom Brassey

readme.md

@@ -16,9 +16,9 @@ _Installation with CocoaPods_
    ```
    machine api.mapbox.com 
      login mapbox
-     password YOUR_PRIVATE_MAPBOX_TOKEN
+     password YOUR_SECRET_MAPBOX_TOKEN
    ```
-   where _YOUR_PRIVATE_MAPBOX_TOKEN_ is your Mapbox API token with the `DOWNLOADS:READ` scope. The login should always be `mapbox`. It should not be your personal username used to create the secret token.
+   where _YOUR_SECRET_MAPBOX_TOKEN_ is your Mapbox API token with the `DOWNLOADS:READ` scope. The login should always be `mapbox`. It should not be your personal username used to create the secret token.
 1. Run `pod repo update && pod install` and open the resulting Navigation-Examples.xcworkspace.
 1. Sign up or log in to your Mapbox account and grab a [Mapbox access token](https://www.mapbox.com/help/define-access-token/).
 1. Enter your Mapbox access token into the value of the `MBXAccessToken` key within the Info.plist file. Alternatively, if you plan to use this project as the basis for any open source application, [read this guide](https://docs.mapbox.com/help/troubleshooting/private-access-token-android-and-ios/#ios) to learn how to best protect your access tokens.