Issues with Drupal coding standards

As i check at https://pareview.sh/pareview/https-git.drupal.org-project-image_field_to...
There some issues with code standards.
Should be fixed.

Review of the 8.x-1.x branch (commit df9bce3):
Your README.txt does not follow best practices (headings need to be uppercase). See https://www.drupal.org/node/2181737 .
The INTRODUCTION section is missing.
The REQUIREMENTS section is missing.
The INSTALLATION section is missing.
The CONFIGURATION section is missing.
The image_field_tokens.module does not implement hook_help(). See https://www.drupal.org/docs/develop/documenting-your-project/module-docu... .
Coder Sniffer has found some issues with your code (please check the Drupal coding standards).

FILE: ...areview_temp/src/Plugin/Field/FieldWidget/ImageFieldTokensWigdet.php
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FOUND 2 ERRORS AFFECTING 1 LINE
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101 | ERROR | Type hint "array" missing for $element
101 | ERROR | Type hint "array" missing for $form
--------------------------------------------------------------------------

Time: 768ms; Memory: 4Mb
DrupalPractice has found some issues with your code, but could be false positives.

FILE: ...w_temp/src/Plugin/Field/FieldFormatter/ImageFieldTokensFormatter.php
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FOUND 0 ERRORS AND 3 WARNINGS AFFECTING 3 LINES
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82 | WARNING | \Drupal calls should be avoided in classes, use
| | dependency injection instead
86 | WARNING | \Drupal calls should be avoided in classes, use
| | dependency injection instead
87 | WARNING | \Drupal calls should be avoided in classes, use
| | dependency injection instead
--------------------------------------------------------------------------

Time: 663ms; Memory: 4Mb