Some readme tweaks

[ci skip]

README.md

@@ -19,10 +19,14 @@ Wiki and knowledge base for growing teams
 
 1. Set up Docker Swarm and [`abra`]
 2. Deploy [`coop-cloud/traefik`]
-3. `abra app new ${REPO_NAME} --secrets` (optionally with `--pass` if you'd like
-   to save secrets in `pass`)
+3. `abra app new ${REPO_NAME}`
+   - **WARNING**: Choose "n" when `abra` asks if you'd like to generate secrets
 4. `abra app config YOURAPPNAME` - be sure to change `$DOMAIN` to something that resolves to
-   your Docker swarm box
+   your Docker swarm box. For Minio, you'll want:
+   - `AWS_ACCESS_KEY_ID=<minio username>`
+   - `AWS_REGION="us-east-1"`
+   - `AWS_S3_UPLOAD_BUCKET_URL=https://minio.example.com`
+   - `AWS_S3_UPLOAD_BUCKET_NAME=
 5. `abra app deploy YOURAPPNAME`
 7. Open the configured domain in your browser to finish set-up
 
@@ -31,6 +35,12 @@ Wiki and knowledge base for growing teams
 
 ## Tips & Tricks
 
+### Create an initial admin user
+
+```
+abra app cmd YOURAPPNAME app create_email_user test@example.com
+```
+
 ### Post-deploy migration
 
 ```