Fix syntax errors in mail adapter configuration example & use current mailgun adapter setup

Author: funkenstrahlen

README.md

@@ -55,8 +55,13 @@ An example configuration to add the API Mail Adapter to Parse Server could look
 
 ```js
 // Declare a mail client
-const mailgun = require('mailgun.js');
-const mailgunClient = mailgun.client({ username: 'api', key: process.env.MAILGUN_API_KEY });
+const formData = require("form-data");
+const Mailgun = require("mailgun.js");
+const mailgun = new Mailgun(formData);
+const mailgunClient = mailgun.client({
+  username: "api",
+  key: process.env.MAILGUN_API_KEY,
+});
 const mailgunDomain = process.env.MAILGUN_DOMAIN;
 
 // Configure Parse Server
@@ -73,24 +78,24 @@ const server = new ParseServer({
                 // The template used by Parse Server to send an email for password
                 // reset; this is a reserved template name.
                 passwordResetEmail: {
-                    subjectPath: './files/password_reset_email_subject.txt'),
-                    textPath: './files/password_reset_email.txt'),
-                    htmlPath: './files/password_reset_email.html')
+                    subjectPath: './files/password_reset_email_subject.txt',
+                    textPath: './files/password_reset_email.txt',
+                    htmlPath: './files/password_reset_email.html'
                 },
                 // The template used by Parse Server to send an email for email
                 // address verification; this is a reserved template name.
                 verificationEmail: {
-                    subjectPath: './files/verification_email_subject.txt'),
-                    textPath: './files/verification_email.txt'),
-                    htmlPath: './files/verification_email.html')
+                    subjectPath: './files/verification_email_subject.txt',
+                    textPath: './files/verification_email.txt',
+                    htmlPath: './files/verification_email.html'
                 },
                 // A custom email template that can be used when sending emails
                 // from Cloud Code; the template name can be choosen freely; it
                 // is possible to add various custom templates.
                 customEmail: {
-                    subjectPath: './files/custom_email_subject.txt'),
-                    textPath: './files/custom_email.txt'),
-                    htmlPath: './files/custom_email.html'),
+                    subjectPath: './files/custom_email_subject.txt',
+                    textPath: './files/custom_email.txt',
+                    htmlPath: './files/custom_email.html',
                     // Placeholders are filled into the template file contents.
                     // For example, the placeholder `{{appName}}` in the email
                     // will be replaced the value defined here.
@@ -140,9 +145,9 @@ Emails are composed using templates. A template defines the paths to its content
 ```js
 templates: {
     exampleTemplate: {
-        subjectPath: './files/custom_email_subject.txt'),
-        textPath: './files/custom_email.txt'),
-        htmlPath: './files/custom_email.html'),
+        subjectPath: './files/custom_email_subject.txt',
+        textPath: './files/custom_email.txt',
+        htmlPath: './files/custom_email.html',
     }
 },
 ```
@@ -226,4 +231,4 @@ Parse.Cloud.sendEmail({
 # Need help?
 
 - Ask on StackOverflow using the [parse-server](https://stackoverflow.com/questions/tagged/parse-server) tag.
-- Search through existing [issues](https://github.com/mtrezza/parse-server-api-mail-adapter/issues) or open a new issue.
+- Search through existing [issues](https://github.com/mtrezza/parse-server-api-mail-adapter/issues) or open a new issue.