diff --git a/README.md b/README.md
index 9669d97..c5d92b6 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Based on [`mediawiki`][mediawiki].
 1. `abra app YOURAPPDOMAIN config` - edit `.envrc` and uncomment the `SMTP` lines. Set `SMTP_HOST` to
    `postfix_relay` for `coop-cloud/postfix_relay`, or `mailu_front` for
    `coop-cloud/mailu` (assuming default stack names)
-2. For `postfix_relay`,  add the domain to your email config – `EXTRA_SENDER_DOMAINS` in
+2. For `postfix_relay`, add the domain to your email config – `EXTRA_SENDER_DOMAINS` in
    `postfix_relay`. This doesn't seem to be required for Mailu.
 3. `abra app YOURAPPDOMAIN deploy`
 
@@ -47,15 +47,15 @@ system. Patches to make this configurable are welcome!
    abra app YOURAPPDOMAIN secret generate saml_secret_salt v1 "pwgen -n 64 1"
    ```
 3. `abra app YOURAPPDOMAIN deploy`
-5. Copy your SimpleSAMLphp metadata and certificates to the container (assuming
+4. Copy your SimpleSAMLphp metadata and certificates to the container (assuming
    you have local `metadata` and `cert` folders:
    ```
    abra app YOURAPPDOMAIN cp metadata simplesaml:/var/simplesamlphp/
    abra app YOURAPPDOMAIN cp cert simplesaml:/var/simplesamlphp/
    ```
-6. You can log into SimpleSAMLphp using the password you generated at
+5. You can log into SimpleSAMLphp using the password you generated at
    https://$DOMAIN/simplesaml/ and test authentication
-7. Edit SimpleSAMLphp's `config.php` and change `store.sql.dsn`:
+6. Edit SimpleSAMLphp's `config.php` and change `store.sql.dsn`:
    ```
    abra app YOURAPPDOMAIN run simplesaml vi /var/simplesamlphp/config/config.php
    # find 'store.sql.dsn' and edit to:
@@ -66,9 +66,11 @@ system. Patches to make this configurable are welcome!
 
 1. `abra app YOURAPPDOMAIN config` - uncomment lines in the `OPENID` section (including `COMPOSE_FILE`)
 2. Store your Keycloak-generated client secret in Docker:
+
 ```
 abra app YOURAPPDOMAIN secret insert openid_client_secret v1 put-your-secret-here
 ```
+
 3. `abra deploy`
 
 ## License
diff --git a/compose.simplesaml.yml b/compose.simplesaml.yml
index 9dcaf92..5eef8c5 100644
--- a/compose.simplesaml.yml
+++ b/compose.simplesaml.yml
@@ -1,11 +1,11 @@
 ---
-version: '3.8'
+version: "3.8"
 
 services:
   app:
     volumes:
-      - 'simplesaml:/var/simplesamlphp/'
-      - 'simplesaml_log:/var/simplesamlphp/log'
+      - "simplesaml:/var/simplesamlphp/"
+      - "simplesaml_log:/var/simplesamlphp/log"
     environment:
       - SAML_AUTH_SOURCE_ID
       - SAML_EMAIL_ATTRIBUTE