Remove not needed composer.lock and optimize readme.md

Author: Crizz0

README.md

@@ -1,4 +1,4 @@
-# phpBB 3.2 Extension - phpBB.de Terms of Use
+# phpBB 3.2 & 3.3 Extension - phpBB.de Terms of Use
 
 ## Installation
 
@@ -14,6 +14,12 @@ and copy the repository content to it.
 
 Go to "ACP" > "Customise" > "Extensions" and enable the "Terms of Use" extension.
 
+## Permissions
+
+This extension adds one administrator permission. The permission can be found at "Administrative 
+permissions" in the tab 'Misc' > 'Can manage “Terms of Use“'. The role "Full Admin" gets it 
+automatically on install or update to v1.1.0. 
+
 ## Development
 
 If you find a bug, please report it on https://github.com/phpbb-de/phpbb-ext-tou