Add mode_id to issue

Author: schnuerle

.github/ISSUE_TEMPLATE/add-provider-id.md

@@ -9,21 +9,24 @@ assignees: ''
 
 **Note:** See the [Adding an MDS Provider ID](https://github.com/openmobilityfoundation/mobility-data-specification/wiki/Adding-an-MDS-Provider-ID) page for more help.
 
-Opening this issue will allow you as a mobility service provider get an official provider ID for use across MDS globally.
+Opening this issue will allow you as a mobility service provider or data source provider to get an official provider ID for use across MDS globally.
 
 **Fields needed from you for the [providers.csv file](https://github.com/openmobilityfoundation/mobility-data-specification/blob/main/providers.csv).**
 
 _All fields are required._
 
 1. **provider_name** - Short name of your company.
    - ...
+1. **mode_id** - The mode that you support. Use the mode short identifier from `micromobility`, `passenger-services`, `delivery-robots`, `car-share`. Register a unique ID for each mode you support.
+   - ...
 1. **provider_id** - A random UUID version 4. There are lots of way to generate a unique UUID, like using this [website](https://www.uuidgenerator.net/version4).
    - ...
 1. **url** - URL to the home page of your company.
    - ...
-1. **mds_api_url** - Full https:// URL where your root MDS feeds are located.
+1. **mds_api_url** - Full https:// base URL where your root MDS feeds are located.
    - ...
-1. **gbfs_api_url** - Full https:// URL where your public GBFS feeds are located.
+1. **gbfs_api_url** - Full https:// base URL where your public GBFS feeds are located.
    - ...
 
 Additionally, please provide your name and role within your agency to help with verification.
+   - ...