[D8] module removed

Hi sugandhkhanna2! First, I just wanted to say I like the idea of this module. I've often found the need for these values in emails but can see the value in not installing the entire Token module just to use them. Below are my findings while reviewing this module.

Token Filter Dependency:

In the description you point out that this module relies on the Token Filter module. Because of that, you'll want to make sure you specify that dependency in the "email_token.info.yml". This will make sure users have that module installed before yours can be enabled. The code for that will be something similar to what is below.

dependencies:
  - token_filter:token_filter

That being said, because the Token Filter module depends on the Token module being installed it would probably make more since for users to just use the Token module directly instead of installing these two additional modules

Automated Review Issues:

In order for this module to be promoted you'll need to run an automated review of the codebase using PAReview and fix the errors. I ran the review for this project that you can see here and there are a good amount of issues for you to work on.

Instructions

I saw that you took the time to create a help page which is awesome! Even with that though I was a little confused on where to actually put the tokens for them to be displayed in emails. Is this done within the settings for the Contact module or are they only available through custom code when manually building emails?

I hope this helps!