diff --git a/README.md b/README.md
index da0723e..058558b 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 Sharedlists is a simple rails driven database for managing multiple product lists of various suppliers.
 
 This app is used in conjunction with [foodsoft](https://github.com/foodcoops/foodsoft).
-Recommended [Ruby](http://ruby-lang.org/) version is 2.3 (note that 2.4 does not work).
+Recommended [Ruby](http://ruby-lang.org/) version is 2.7.
 
 
 ## Development
@@ -15,7 +15,7 @@ Recommended [Ruby](http://ruby-lang.org/) version is 2.3 (note that 2.4 does not
 Copy `config/database.yml.SAMPLE` to `config/database.yml` and
 
     docker-compose run --rm app bundle
-    docker-compose run --rm app rake db:setup
+    docker-compose run --rm app rails db:setup
 
 ### Run
 
@@ -31,6 +31,8 @@ To access sharedlists, you'll need to create a user (and I guess you want admin
     > u.save!
     > exit
 
+You can create more users within the web interface.
+
 ## Production
 
 Either fetch the image, or build it:
@@ -39,16 +41,16 @@ Either fetch the image, or build it:
     # or
     docker build --tag sharedlists:latest --rm .
 
-Then set environment variables `SECRET_TOKEN` and `DATABASE_URL` and run:
+Then set environment variables `SECRET_KEY_BASE` and `DATABASE_URL` and run:
 
     docker run --name sharedlists_web \
-      -e SECRET_TOKEN -e DATABASE_URL -e RAILS_FORCE_SSL=false \
+      -e SECRET_KEY_BASE -e DATABASE_URL -e RAILS_FORCE_SSL=false \
       sharedlists:latest
 
 To run cronjobs, start another instance:
 
     docker run --name sharedlists_cron \
-      -e SECRET_TOKEN -e DATABASE_URL \
+      -e SECRET_KEY_BASE -e DATABASE_URL \
       sharedlists:latest  ./proc-start cron
 
 If you want to process incoming mails, add another instance like the previous,
@@ -97,19 +99,19 @@ Once you have the `sync_ftp_files` task working, you may wish to setup a
 ### Email
 
 Some suppliers send a regular email with an article list in the attachment. For this, an
-email server needs to be run using the rake task `mail:smtp_server`.
+email server needs to be run using the rails task `mail:smtp_server`.
 On production, you may want to run this on localhost on an unprivileged port, with a
 proper [MTA](https://en.wikipedia.org/wiki/Message_transfer_agent) in front that
 does message routing.
 
 To enable this for a certain supplier, tick the checkbox _Update articles by email_. Then
 select a file format to use for importing, and the supplier's email address from which the
-email is sent. If you only want to import for mails with a subject that contains a certain
+email is sent. If you only want to import mails with a subject that contains a certain
 text (e.g. _Articles in week_), fill in the subject field as well.
 
-What email address does the supplier need to send to? Users will find this after saving
-the supplier after _Send to_.
+What email address does the supplier need to send to? Users will find this after initial creating and
+saving the supplier after _Send to_.
 
 This needs setting up of the environment variable `MAILER_DOMAIN`, on which you receive the
-emails. It is allowed to prefix the address, you may want to set the prefix in `MAILER_PREFIX`.
-This is useful when you're running an email server in front to route mails.
+mails. It is allowed to prefix the address, you may want to set the prefix in `MAILER_PREFIX`.
+This is useful when you're running a mail server in front to route mails.
\ No newline at end of file