docs(repeatable): add example when removing repeatable jobs (#2257)

docs/gitbook/guide/jobs/repeatable.md

@@ -52,6 +52,20 @@ There are some important considerations regarding repeatable jobs:
 - If there are no workers running, repeatable jobs will not accumulate next time a worker is online.
 - repeatable jobs can be removed using the [removeRepeatable](https://api.docs.bullmq.io/classes/v4.Queue.html#removeRepeatable) method or [removeRepeatableByKey](https://api.docs.bullmq.io/classes/v4.Queue.html#removeRepeatableByKey).
 
+```typescript
+import { Queue } from 'bullmq';
+
+const repeat = { pattern: '*/1 * * * * *' };
+
+const myQueue = new Queue('Paint');
+
+const job1 = await myQueue.add('red', { foo: 'bar' }, { repeat });
+const job2 = await myQueue.add('blue', { foo: 'baz' }, { repeat });
+
+const isRemoved1 = await myQueue.removeRepeatableByKey(job1.repeatJobKey);
+const isRemoved2 = await queue.removeRepeatable('blue', repeat);
+```
+
 All repeatable jobs have a repeatable job key that holds some metadata of the repeatable job itself. It is possible to retrieve all the current repeatable jobs in the queue calling [getRepeatableJobs](https://api.docs.bullmq.io/classes/v4.Queue.html#getRepeatableJobs):
 
 ```typescript

src/classes/queue.ts

@@ -314,7 +314,7 @@ export class Queue<
    *
    * @see removeRepeatableByKey
    *
-   * @param name -
+   * @param name - job name
    * @param repeatOpts -
    * @param jobId -
    * @returns
@@ -337,7 +337,7 @@ export class Queue<
    *
    * @see getRepeatableJobs
    *
-   * @param key - to the repeatable job.
+   * @param repeatJobKey - to the repeatable job.
    * @returns
    */
   async removeRepeatableByKey(key: string): Promise<boolean> {