Formatting fix and add 1.19 notes

docs/simplesamlphp-upgrade-notes.md

@@ -4,19 +4,20 @@ SimpeSAMLphp Upgrade Notes
 See the following pages for important information for users upgrading
 from older versions of SimpleSAMLphp:
 
-    * [Upgrade notes for version 1.18](simplesamlphp-upgrade-notes-1.18)
-    * [Upgrade notes for version 1.17](simplesamlphp-upgrade-notes-1.17)
-    * [Upgrade notes for version 1.16](simplesamlphp-upgrade-notes-1.16)
-    * [Upgrade notes for version 1.15](simplesamlphp-upgrade-notes-1.15)
-    * [Upgrade notes for version 1.14](simplesamlphp-upgrade-notes-1.14)
-    * [Upgrade notes for version 1.13](simplesamlphp-upgrade-notes-1.13)
-    * [Upgrade notes for version 1.12](simplesamlphp-upgrade-notes-1.12)
-    * [Upgrade notes for version 1.11](simplesamlphp-upgrade-notes-1.11)
-    * [Upgrade notes for version 1.10](simplesamlphp-upgrade-notes-1.10)
-    * [Upgrade notes for version 1.9](simplesamlphp-upgrade-notes-1.9)
-    * [Upgrade notes for version 1.8](simplesamlphp-upgrade-notes-1.8)
-    * [Upgrade notes for version 1.7](simplesamlphp-upgrade-notes-1.7)
-    * [Upgrade notes for version 1.6](simplesamlphp-upgrade-notes-1.6)
+* [Upgrade notes for version 1.19](simplesamlphp-upgrade-notes-1.19)
+* [Upgrade notes for version 1.18](simplesamlphp-upgrade-notes-1.18)
+* [Upgrade notes for version 1.17](simplesamlphp-upgrade-notes-1.17)
+* [Upgrade notes for version 1.16](simplesamlphp-upgrade-notes-1.16)
+* [Upgrade notes for version 1.15](simplesamlphp-upgrade-notes-1.15)
+* [Upgrade notes for version 1.14](simplesamlphp-upgrade-notes-1.14)
+* [Upgrade notes for version 1.13](simplesamlphp-upgrade-notes-1.13)
+* [Upgrade notes for version 1.12](simplesamlphp-upgrade-notes-1.12)
+* [Upgrade notes for version 1.11](simplesamlphp-upgrade-notes-1.11)
+* [Upgrade notes for version 1.10](simplesamlphp-upgrade-notes-1.10)
+* [Upgrade notes for version 1.9](simplesamlphp-upgrade-notes-1.9)
+* [Upgrade notes for version 1.8](simplesamlphp-upgrade-notes-1.8)
+* [Upgrade notes for version 1.7](simplesamlphp-upgrade-notes-1.7)
+* [Upgrade notes for version 1.6](simplesamlphp-upgrade-notes-1.6)
 
 A detailed list of changes in each release can be found in the
 [Changelog](simplesamlphp-changelog).