Implement hook_help()

Please review the patch.

@Sahana _N
Kindlly update the text from
This module provides a block to display a calendar powered by FullCalendar 5.It creates a block called FullCalendar block which accepts event source as a json (URL) feed.
To
This module provides a block to display a calendar powered by FullCalendar 5. It creates a block called 'FullCalendar block' which accepts event source as a json (URL) feed. The URL can be a relative or absolute link. You may use a relative link if the event source is a Drupal view.

Kindly Review Merge request !8

Thank you.

Automatically closed - issue fixed for 2 weeks with no activity.