Stops: beta feedback and schema link

Author: schnuerle

provider/README.md

@@ -345,7 +345,7 @@ The authenticated reports are monthly, historic flat files that may be pre-gener
 
 **Endpoint:** `/reports`  
 **Method:** `GET`  
-**[Beta feature][beta]:** Yes (as of 1.1.0)  
+**[Beta feature][beta]:** Yes (as of 1.1.0). [Leave feedback](https://github.com/openmobilityfoundation/mobility-data-specification/issues/672)  
 **Schema:** TBD when out of beta  
 **`data` Filename:** monthly file named by year and month, e.g. `/reports/YYYY-MM.csv`  
 **`data` Payload:** monthly CSV files with the following structure: 
@@ -530,7 +530,8 @@ In addition to the standard [Provider payload wrapper](#response-format), respon
 
 **Endpoint:** `/stops/:stop_id`  
 **Method:** `GET`  
-**[Beta feature][beta]:** Yes (as of 1.0.0)  
+**[Beta feature][beta]:** Yes (as of 1.0.0). [Leave feedback](https://github.com/openmobilityfoundation/mobility-data-specification/issues/638)  
+**Schema:** [`stops` schema][stops-schema]  
 **`data` Payload:** `{ "stops": [] }`, an array of [Stops][stops]
 
 In the case that a `stop_id` query parameter is specified, the `stops` array returned will only have one entry. In the case that no `stop_id` query parameter is specified, all stops will be returned.