Updated Configuration (markdown)

Configuration.md

@@ -42,7 +42,7 @@ Preselect the burn-after-reading feature by default, defaults to false.
 
 The `default` option in the `[expire]` section controls, which expire value is selected by default. Make sure the value exists in the section `[expire_options]`.
 
-In `[expire_options]` and `[expire_labels]` you can define the expiration options. These define the lifetime of a newly created paste in seconds. Each option in `[expire_options]` needs a description label with the same key in the `[expire_labels]` section.
+In `[expire_options]` you can define the expiration options. These define the lifetime of a newly created paste in seconds. The `[expire_labels]` option found in version 0.20 is deprecated and will no longer be required in version 0.21, instead the labels are generated based on the keys in the `[expire_options]`.
 
 Using a value of 0 for the seconds means to never expire this post. Remove this line from the default configuration if you want to enforce that all pastes expire eventually in your system. But be aware that changing this setting only affects newly created pastes.