Renamed the .example env file and added instructions for getting your Resend API

.env.example

@@ -0,0 +1,36 @@
+# YOU MUST SET THESE VARIABLES
+# Resend is an email service used for signing in to Trigger.dev via a Magic Link.
+### Visit https://resend.com, create an account and get your API key. Then insert it below along with your From and Reply To email addresses. Visit https://resend.com/docs for more information.
+RESEND_API_KEY=<api_key>
+FROM_EMAIL=
+REPLY_TO_EMAIL=
+
+# YOU MIGHT LIKE TO MODIFY THESE VARIABLES
+SESSION_SECRET=abcdef1234
+MAGIC_LINK_SECRET=abcdef1234
+LOGIN_ORIGIN=http://localhost:3030
+DATABASE_URL=postgresql://postgres:postgres@localhost:5432/postgres?schema=public 
+REMIX_APP_PORT=3030
+APP_ENV=development
+APP_ORIGIN=http://localhost:3030
+NODE_ENV=development
+
+# OPTIONAL VARIABLES
+AUTH_GITHUB_CLIENT_ID=
+AUTH_GITHUB_CLIENT_SECRET=
+
+# CLOUD VARIABLES
+POSTHOG_PROJECT_KEY=
+PLAIN_API_KEY= 
+SEED_CLOUD=
+SEED_CLOUD_EMAIL=
+SEED_CLOUD_GITHUB_ACCESS_TOKEN=
+SEED_CLOUD_SLACK_ACCESS_TOKEN=
+SEED_CLOUD_USER_GITHUB_ACCESS_TOKEN=
+CLOUD_AIRTABLE_CLIENT_ID=
+CLOUD_AIRTABLE_CLIENT_SECRET=
+CLOUD_GITHUB_CLIENT_ID=
+CLOUD_GITHUB_CLIENT_SECRET=
+CLOUD_SLACK_APP_HOST=
+CLOUD_SLACK_CLIENT_ID=
+CLOUD_SLACK_CLIENT_SECRET=