diff --git a/README.md b/README.md
index 1411f67..989bb07 100644
--- a/README.md
+++ b/README.md
@@ -59,10 +59,15 @@ App example addition:
 Here is the procedure to request that your app will be part of the list of official applications of YunoHost:
 
 * before everything, having you application joining the list of official applications will make you a maintainer of it and will requires you to ensure this position or to find someone else to do it in the future
-* your app must be tested on several architectures (32/64 bits, ARM) or depends on crossplatform systems
+* your app must be tested on several architectures (32/64 bits, ARM) or depends on cross-platform systems
 * you must be subscribed to the [apps official mailing list](https://list.yunohost.org/cgi-bin/mailman/listinfo/apps) since this is the way that we communicate to apps maintainers
-* your application must have at least a install, remove and upgrade (if this makes sens) scripts
-* your applicaiton must be installable on a custom path (`domain.tld/custom_path/`) in addition to the root path
+* your application must have the following scripts:
+ * a install script, obviously
+ * a remove script
+ * an upgrade script if needed
+ * a backup/restore script if your application stores data
+* your application must be installable on a custom path (`domain.tld/custom_path/`) in addition to the root path
+* if relevant, your application must be integrated with YunoHost SSO
 * your application you have packaged must be free software
 * once all those requirements are fulfilled, fork this repository, add your application to the official.json list with the status "validated" following the documentation above, then open a pull request
 * we will then start a reviewing process and we will work together to bring your application to a state where we can hopefully include it to the official applications list :)