Added docs section for Cron Patterns

Author: denysovvl

docs/plugins/cron.md

@@ -139,3 +139,121 @@ const app = new Elysia()
     })
     .listen(8080)
 ```
+
+## Predefined patterns
+
+You can use predefined patterns from `@elysiajs/cron/schelude`
+```typescript
+import { Elysia } from 'elysia'
+import { cron } from '@elysiajs/cron'
+import { Patterns } from '@elysiajs/cron/schelude'
+
+const app = new Elysia()
+    use(
+        cron({
+            name: 'heartbeat',
+            pattern: Patterns.everySecond(),
+            run() {
+                console.log("Heartbeat")
+            }
+        }
+    )
+    .get('/stop', ({ store: { cron: { heartbeat } } }) => {
+        heartbeat.stop()
+
+        return 'Stop heartbeat'
+    })
+    .listen(8080)
+```
+
+
+### Functions
+
+Function  | Description
+------------- | -------------
+`.everySenconds(2)`  |  Run the task every 2 seconds
+`.everyMinutes(5)`  |  Run the task every 5 minutes
+`.everyHours(3)`  |  Run the task every 3 hours
+`.everyHoursAt(3, 15)`  |   Run the task every 3 hours at 15 minutes
+`.everyDayAt('04:19')`  |   Run the task every day at 04:19
+`.everyWeekOn(Patterns.MONDAY, '19:30')`  |   Run the task every Monday at 19:30
+`.everyWeekdayAt('17:00')`  |  Run the task every day from Monday to Friday at 17:00
+`.everyWeekendAt('11:00')`  |  Run the task on Saturday and Sunday at 11:00
+
+### Function aliases to constants
+
+Function  | Constant
+------------- | -------------
+`.everySecond()`  |  EVERY_SECOND
+`.everyMinute()`  |  EVERY_MINUTE
+`.hourly()`  |  EVERY_HOUR
+`.daily()`  |  EVERY_DAY_AT_MIDNIGHT
+`.everyWeekday()`  |  EVERY_WEEKDAY
+`.everyWeekend()`  |  EVERY_WEEKEND
+`.weekly()`  |  EVERY_WEEK
+`.monthly()`  |  EVERY_1ST_DAY_OF_MONTH_AT_MIDNIGHT
+`.everyQuarter()`  |  EVERY_QUARTER
+`.yearly()`  |  EVERY_YEAR
+
+### Constants
+
+ Constant | Pattern
+------------- | -------------
+  `.EVERY_SECOND` | `* * * * * *`
+  `.EVERY_5_SECONDS` | `*/5 * * * * *`
+  `.EVERY_10_SECONDS` | `*/10 * * * * *`
+  `.EVERY_30_SECONDS` | `*/30 * * * * *`
+  `.EVERY_MINUTE` | `*/1 * * * *`
+  `.EVERY_5_MINUTES` | `0 */5 * * * *`
+  `.EVERY_10_MINUTES` | `0 */10 * * * *`
+  `.EVERY_30_MINUTES` | `0 */30 * * * *`
+  `.EVERY_HOUR` | `0 0-23/1 * * *`
+  `.EVERY_2_HOURS` | `0 0-23/2 * * *`
+  `.EVERY_3_HOURS` | `0 0-23/3 * * *`
+  `.EVERY_4_HOURS` | `0 0-23/4 * * *`
+  `.EVERY_5_HOURS` | `0 0-23/5 * * *`
+  `.EVERY_6_HOURS` | `0 0-23/6 * * *`
+  `.EVERY_7_HOURS` | `0 0-23/7 * * *`
+  `.EVERY_8_HOURS` | `0 0-23/8 * * *`
+  `.EVERY_9_HOURS` | `0 0-23/9 * * *`
+  `.EVERY_10_HOURS` | `0 0-23/10 * * *`
+  `.EVERY_11_HOURS` | `0 0-23/11 * * *`
+  `.EVERY_12_HOURS` | `0 0-23/12 * * *`
+  `.EVERY_DAY_AT_1AM` | `0 01 * * *`
+  `.EVERY_DAY_AT_2AM` | `0 02 * * *`
+  `.EVERY_DAY_AT_3AM` | `0 03 * * *`
+  `.EVERY_DAY_AT_4AM` | `0 04 * * *`
+  `.EVERY_DAY_AT_5AM` | `0 05 * * *`
+  `.EVERY_DAY_AT_6AM` | `0 06 * * *`
+  `.EVERY_DAY_AT_7AM` | `0 07 * * *`
+  `.EVERY_DAY_AT_8AM` | `0 08 * * *`
+  `.EVERY_DAY_AT_9AM` | `0 09 * * *`
+  `.EVERY_DAY_AT_10AM` | `0 10 * * *`
+  `.EVERY_DAY_AT_11AM` | `0 11 * * *`
+  `.EVERY_DAY_AT_NOON` | `0 12 * * *`
+  `.EVERY_DAY_AT_1PM` | `0 13 * * *`
+  `.EVERY_DAY_AT_2PM` | `0 14 * * *`
+  `.EVERY_DAY_AT_3PM` | `0 15 * * *`
+  `.EVERY_DAY_AT_4PM` | `0 16 * * *`
+  `.EVERY_DAY_AT_5PM` | `0 17 * * *`
+  `.EVERY_DAY_AT_6PM` | `0 18 * * *`
+  `.EVERY_DAY_AT_7PM` | `0 19 * * *`
+  `.EVERY_DAY_AT_8PM` | `0 20 * * *`
+  `.EVERY_DAY_AT_9PM` | `0 21 * * *`
+  `.EVERY_DAY_AT_10PM` | `0 22 * * *`
+  `.EVERY_DAY_AT_11PM` | `0 23 * * *`
+  `.EVERY_DAY_AT_MIDNIGHT` | `0 0 * * *`
+  `.EVERY_WEEK` | `0 0 * * 0`
+  `.EVERY_WEEKDAY` | `0 0 * * 1-5`
+  `.EVERY_WEEKEND` | `0 0 * * 6,0`
+  `.EVERY_1ST_DAY_OF_MONTH_AT_MIDNIGHT` | `0 0 1 * *`
+  `.EVERY_1ST_DAY_OF_MONTH_AT_NOON` | `0 12 1 * *`
+  `.EVERY_2ND_HOUR` | `0 */2 * * *`
+  `.EVERY_2ND_HOUR_FROM_1AM_THROUGH_11PM` | `0 1-23/2 * * *`
+  `.EVERY_2ND_MONTH` | `0 0 1 */2 *`
+  `.EVERY_QUARTER` | `0 0 1 */3 *`
+  `.EVERY_6_MONTHS` | `0 0 1 */6 *`
+  `.EVERY_YEAR` | `0 0 1 1 *`
+  `.EVERY_30_MINUTES_BETWEEN_9AM_AND_5PM` | `0 */30 9-17 * * *`
+  `.EVERY_30_MINUTES_BETWEEN_9AM_AND_6PM` | `0 */30 9-18 * * *`
+  `.EVERY_30_MINUTES_BETWEEN_10AM_AND_7PM` | `0 */30 10-19 * * *`