Fix FCL EventFilter documentation (#1180)

Author: jribbink

docs/tools/clients/fcl-js/api.md

@@ -1200,15 +1200,9 @@ A build that returns a [event stream connection](#eventstream) once decoded. It
 
 #### Arguments
 
-| Name                     | Type                      | Description                                                                                                             |
-| ------------------------ | ------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
-| `opts`                   | `Object`                  | An object with the following keys:                                                                                      |
-| `opts.startBlockId`      | string | undefined   | The block ID to start listening for events. Example: `9dda5f281897389b99f103a1c6b180eec9dac870de846449a302103ce38453f3` |
-| `opts.startHeight`       | number | undefined   | The block height to start listening for events. Example: `123`                                                          |
-| `opts.eventTypes`        | string[] | undefined | The event types to listen for. Example: `A.7e60df042a9c0868.FlowToken.TokensWithdrawn`                                  |
-| `opts.addresses`         | string[] | undefined | The addresses to listen for. Example: `0x7e60df042a9c0868`                                                              |
-| `opts.contracts`         | string[] | undefined | The contracts to listen for. Example: `0x7e60df042a9c0868`                                                              |
-| `opts.heartbeatInterval` | number | undefined   | The interval in milliseconds to send a heartbeat to the Access Node. Example: `10000`                                   |
+| Name          | Type                        | Description                       |
+| ------------- | --------------------------- | --------------------------------- |
+| `eventFilter` | [EventFilter](#eventfilter) | The event filter to subscribe to. |
 
 #### Returns after decoding
 
@@ -1565,9 +1559,9 @@ Note:
 
 #### Arguments
 
-| Name        | Type   | Description         |
-| ----------- | ------ | ------------------- |
-| `eventName` | string | A valid event name. |
+| Name                | Type                                      | Description                                      |
+| ------------------- | ----------------------------------------- | ------------------------------------------------ |
+| `eventNameOrFilter` | string | [EventFilter](#eventfilter) | The name of the event or an event filter object. |
 
 #### Returns
 
@@ -2017,6 +2011,19 @@ FCL arguments must specify one of the following support types for each value pas
 
 ---
 
+### `EventFilter`
+
+An object that contains the parameters to filter events, used for event streaming in the [`fcl.events`](#events) function.
+
+| Name                     | Value Type                | Description                                                                                                             |
+| ------------------------ | ------------------------- | ----------------------------------------------------------------------------------------------------------------------- |
+| `startBlockId`           | string | undefined   | The block ID to start listening for events. Example: `9dda5f281897389b99f103a1c6b180eec9dac870de846449a302103ce38453f3` |
+| `startHeight`            | number | undefined   | The block height to start listening for events. Example: `123`                                                          |
+| `eventTypes`             | string[] | undefined | The event types to listen for. Example: `A.7e60df042a9c0868.FlowToken.TokensWithdrawn`                                  |
+| `addresses`              | string[] | undefined | The addresses to listen for. Example: `0x7e60df042a9c0868`                                                              |
+| `contracts`              | string[] | undefined | The contracts to listen for. Example: `0x7e60df042a9c0868`                                                              |
+| `opts.heartbeatInterval` | number | undefined   | The interval in milliseconds to send a heartbeat to the Access Node. Example: `10000`                                   |
+
 ### `StreamConnection`
 
 A stream connection is an object for subscribing to generic data from any WebSocket data stream. This is the base type for all stream connections. Two channels, `close` and `error`, are always available, as they are used to signal the end of the stream and any errors that occur.