Update docs/simplesamlphp-upgrade-notes-2.0.md

Co-authored-by: Thijs Kinkhorst <thijs@kinkhorst.com>

Update docs/simplesamlphp-upgrade-notes-2.0.md
c5d002c3 · Tim van Dijen · 7f121fd2 · c5d002c3
Commit c5d002c3 authored 2 years ago by Tim van Dijen
--- a/docs/simplesamlphp-upgrade-notes-2.0.md
+++ b/docs/simplesamlphp-upgrade-notes-2.0.md
@@ -32,7 +32,7 @@ Functional changes
 - All support for the Shibboleth 1.3 / SAML 1.1 protocol has been removed.
 - Sessions are no longer backwards compatible with previous versions. Make sure to clear your session cache during
  the upgrade process. How to do this depends on your session backend.
- EntityIDs are no longer auto-generated. Make sure to set it to something senseful in the array-keys in `metadata/saml20-idp-hosted.php`
+- EntityIDs are no longer auto-generated. Make sure to set it to something sensible in the array-keys in `metadata/saml20-idp-hosted.php` (or to the existing entityID when upgrading an existing installation).

 Configuration changes
 ---------------------