fix(email-templating): update readme lists

packages/component-email-templating/README.md

-# Email Template
+# Email Templating
 
 ## About
 
-The `email-template` component contains an `Email` class with two instance methods: `getBody` for retrieving the email body (html and text) and `sendEmail` for sending the email using the `send-email` component from PubSweet.
+The `email-templating` component contains an `Email` class with two main instance methods: `getNotificationBody` for retrieving the email body (html and text) and `sendEmail` for sending the email using the `send-email` component from PubSweet.
 
-1.  `getBody({ body = {}, isReviewerInvitation = false })`:
-    * accepts two parameters:
-      * the `body` object, which for simple notifications should have only two properties: `paragraph` and `hasLink`
-      * the `isReviewerInvitation` boolean to indicate wether or not you need to send a Reviewer Invitation, which uses a more complex template
-    * returns the HTML and text parts of the email which can then be used to send it
+1.  `getNotificationBody({ emailBodyProps = {} )` accepts one parameter object with should contain the following properties:
+      * `paragraph`: the main text part of the email body which informs the recipient
+      * `hasLink`: a boolean which indicates if the email body contains a CTA (big button) or not
+      * `hasIntro`: a boolean which indicates if the email body contains the "Dear Dr. John" introduction or not.
+      * `hasSignature`: a boolean which indicates if the email body contains a typical "Kind regards," signature or not
+    This function returns the HTML and text parts of the email which can then be used to send it.
 1.  `sendEmail({ text, html })`:
     * accepts the text and HTML parts of an email and then uses the `send-email` component from PubSweet to actually send the email.
 
 The `Email` class also provides a `constructor` whose properties will be used when sending the email:
 
 1.  `type`: a String that can be either `user` or `system` which can be used in the unsubscribe process
+2.  `fromEmail`: a String indicating the from name and from email address: `Coko <team@coko.foundation>`
 1.  `toUser`: an Object with two properties: `email` and `name`. The `name` property will be used when addressing the recipient in the email content - for example: "Dear Dr. Rachel Smith".
-1.  `content`: an Object which contains data about the email:
+1.  `content`: an Object which contains properties about the email:
     1.  `subject`
-    1.  `signatureName`
+    1.  `signatureName` - the name which will appear in the signature
     1.  `ctaLink` - the URL which will be placed in the button
     1.  `ctaText` - the text which appears on the button
     1.  `unsubscribeLink`
+    2.  `signatureJournal` - the journal or company name which will appear in the signature
 
 ## Usage
 
-1.  **Notifications**
-    These are the most basic emails, which contain at least a piece of text, called a `Paragraph` and may or may not contain an `Action Button`. The `paragraph` and `hasLink` are passed to the `getBody()` function as properties of the `body` parameter.
+1.  **Config**
+
+    In order to use this component, you need the to add the following data in your main config file:
+    ```javascript
+      journal: {
+        name: 'Coko Foundation',
+        staffEmail: 'Coko <team@coko.foundation>',
+        logo: 'https://coko.foundation/wp-content/uploads/2017/11/logo-coko.png',
+        ctaColor: '#EE2B77', // the color of the email button
+        logoLink: 'https://coko.foundation/',
+        publisher: 'Coko Foundation', // this will appear in the email footer
+        privacy: '', // a text containing information about the privacy policy that will appear in the email footer
+        address: '2973 16th St., Suite 300, San Francisco, CA 94103', // the address in the footer
+      },
+    ```
+
+1. **Dependencies**
+    * [Pubsweet's Send Email](https://www.npmjs.com/package/@pubsweet/component-send-email)
+    * [Configure your Node.js Applications](https://www.npmjs.com/package/config)
+    * [Handlebars.js](https://www.npmjs.com/package/handlebars)
+
+2. **Notifications**
+
+    These are the most basic emails, which contain at least a piece of text, called a paragraph, and may or may not contain an intro, an action button and a signature.
 
     ![notification](https://gitlab.coko.foundation/xpub/xpub-faraday/uploads/27cb6acc8ff4a07758f55e5ea0504d28/notification.png)
 
     ```javascript
     const emailTemplate = require('@pubsweet/component-email-template')
+    const config = require('config')
+
+    const { name: journalName, fromEmail: staffEmail } = config.get('journal')
 
     const sendNotifications = ({ user, editor, collection, fragment }) => {
       const email = new emailTemplate({
         type: 'user',
+        fromEmail,
         toUser: {
           email: user.email,
-          name: `${user.firstName} ${user.lastName}`,
+          name: `${user.lastName}`,
         },
         content: {
-          subject: `${collection.customId}: Manuscript Update`,
+          ctaText: 'MANUSCRIPT DETAILS',
+          signatureJournal: journalName,
           signatureName: `${editor.name}`,
+          subject: `${collection.customId}: Manuscript Update`,
+          unsubscribeLink: `http://localhost:3000/unsubscribe/${user.id}`,
           ctaLink: `http://localhost:3000/projects/${collection.id}/versions/${
             fragment.id
           }/details`,
-          ctaText: 'MANUSCRIPT DETAILS',
-          unsubscribeLink: `http://localhost:3000/unsubscribe/${user.id}`,
         },
       })
 
       const paragraph = `We are please to inform you that the manuscript has passed the technical check process and is now submitted. Please click the link below to access the manuscript.`
 
-      const { html, text } = email.getBody({ paragraph, hasLink: true })
+      const { html, text } = email.getNotificationBody({ emailBodyProps: { paragraph, hasLink: true, hasIntro: true, hasSignature: true }})
+
       email.sendEmail({ html, text })
     }
     ```