Consolidating Apoorva\'s minor pending changes to one PR

Author: tulshi

openid-sharedsignals-framework-1_0.md

@@ -787,9 +787,9 @@ following properties:
 
 stream_id
 
-> **Transmitter-Supplied**, A string that uniquely identifies the stream. Stream
-  IDs MUST be unique per Reciever.  This value is generated by the Transmitter
-  when the stream is created.
+> **Transmitter-Supplied**, A string that uniquely identifies the stream. A
+  transmitter MUST generate a unique ID for each of its streams at the time of
+  stream creation.
 
 iss
 
@@ -818,13 +818,15 @@ events_requested
 > **Receiver-Supplied**, An array of URIs identifying the set of events that
   the Receiver requested. A Receiver SHOULD request only the events that it
   understands and it can act on. This is configurable by the Receiver. A
-  Transmitter MUST ignore any array values that it does not understand.
+  Transmitter MUST ignore any array values that it does not understand. This
+  array MUST NOT be empty.
 
 events_delivered
 
-> **Transmitter-Supplied**, An array of URIs which is the intersection of
-  "events_supported" and "events_requested". These events MAY be delivered over
-  the Event Stream. A Receiver MUST rely on the values received in this field
+> **Transmitter-Supplied**, An array of URIs identifying the set of events that
+  the Transmitter SHALL include in the stream. This is a subset (not necessarily
+  a proper subset) of the intersection of "events_supported" and
+  "events_requested". A Receiver MUST rely on the values received in this field
   to understand which event types it can expect from the Transmitter.
 
 delivery
@@ -872,7 +874,7 @@ the Event Transmitter responds with a "201 Created" response containing a
 The HTTP POST request MAY contain the Receiver-Supplied values of the Stream
 Configuration ({{stream-config}}) object:
 
-* `events_requested`
+* `events_requested` : This MUST NOT be empty
 * `delivery` : Note that in the case of the POLL method, the `endpoint_url` value is
   supplied by the Transmitter.
 
@@ -1152,7 +1154,8 @@ configuration in the body.
 The stream_id property MUST be present in the request. Other properties
 MAY be present in the request. Any Receiver-Supplied property present in the
 request MUST be updated by the Transmitter. Any properties missing in the
-request MUST NOT be changed by the Transmitter.
+request MUST NOT be changed by the Transmitter. If the `events_requested` parameter
+is present in the request, its value MUST NOT be an empty array.
 
 Transmitter-Supplied properties beside the stream_id MAY be present,
 but they MUST match the expected value. Missing Transmitter-Supplied