Support a .env file, include a .env.example

.env.example

@@ -0,0 +1,3 @@
+REDMINE_URL="https://hq.example.com"
+REDMINE_API_KEY="abc123"
+DEBUG_MODE=FALSE

.gitignore

@@ -1,2 +1,3 @@
 /vendor/
 /data/*.csv
+.env

getmemberships.php

@@ -2,7 +2,12 @@
 <?php
 
 require_once 'vendor/autoload.php';
-$client = new Redmine\Client('https://hq.megaphonetech.com', '965fddd60cfb5690d15542944998058224d7289f');
+
+// Load the .env file
+$dotenv = new Dotenv\Dotenv(__DIR__);
+$dotenv->load();
+
+$client = new Redmine\Client(getenv('REDMINE_URL'), getenv('REDMINE_API_KEY'));
 $client->setCheckSslCertificate(true);
 
 $limit = 100;