Update README.md file according to "README.md template"

When trying to apply the patch, the following can be observed:

7.patch:18: trailing whitespace.
# Calendar Link
7.patch:63: trailing whitespace.
library as its foundation. Use composer to install the module
7.patch:73: trailing whitespace.
- Install with composer to ensure dependencies are also installed:
7.patch:79: trailing whitespace.
- Install as you would normally install a contributed Drupal module. For
7.patch:112: trailing whitespace.
Returns an array of links for all available calendar types. Each
warning: squelched 2 whitespace errors
warning: 7 lines add whitespace errors.

Hello Everyone !!
Created a #6 patch for calender link 3.0.x-dev. The patch successfully fix the old README.md according to README.md template.
Can someone please review the patch.

Thank you for your support!!!

The last submitted patch, 6: updated #6.patch, failed testing. View results →

Updated MR. Please review.

Reviewed MR!7, Patch is not cleanly applied.

a. In ##Use section, `calendar_link` given as twice with same marking as 1.
b.  Above ## Maintainers, Two lines prior are required.

Please review.

Reviewed MR!7,

a) 7.diff.txt:151: trailing whitespace.
In a twig template file, the following code with generate a link to the event
warning: 1 line adds whitespace errors.

b) Two line prior to maintainer section is required.

Reviewed the MR7 , added some minor update and rest of the changes looks Ok.
Moving to RTBC.
Thanks.

Still the issue exists:
1. Two line prior to "Maintainer" and "Configuration" section is required.

Reviewed MR!7, the file is updated as per the readme.md file template.
Hence marking it to RTBC.