removed inline documentation (#624)

UPGRADING.md

@@ -38,7 +38,7 @@ Check if you want to apply changes to your `local.yaml`:
 ## [0.7](https://github.com/kevinpapst/kimai2/releases/tag/0.7)
 
 The configuration `kimai.theme.active_warning` was deprecated and should be replaced in your local.yaml, 
-[read config docs for more information](https://github.com/kevinpapst/kimai2/blob/master/var/docs/configurations.md#limit-active-entries).
+[read config docs for more information](https://www.kimai.org/documentation/timesheet.html#limit-active-entries).
 
 ## [0.6.1](https://github.com/kevinpapst/kimai2/releases/tag/0.6.1)
 
@@ -56,7 +56,7 @@ Some configuration nodes were removed, if you have one of them in your `local.ya
 - `kimai.invoice.renderer`
 - `kimai.invoice.number_generator`
 
-The new config `kimai.invoice.documents` was introduced, holding a list of directories ([read more](https://github.com/kevinpapst/kimai2/blob/master/var/docs/invoices.md)).
+The new config `kimai.invoice.documents` was introduced, holding a list of directories ([read more](https://www.kimai.org/documentation/invoices.html)).
 
 **BC break:** InvoiceTemplate name was changed from 255 characters to 60. If you used longer invoice-template names, they will be truncated when upgrading the database.
 Please make sure that they are unique in the first 60 character before you upgrade your database with `doctrine:migrations:migrate`. 
@@ -79,7 +79,7 @@ sudo -u www-data composer update symfony/flex --no-plugins --no-scripts
 
 ## [0.3](https://github.com/kevinpapst/kimai2/releases/tag/0.3)
 
-You need to adjust your `.env` file and add your `from` address for [all emails](https://github.com/kevinpapst/kimai2/blob/master/var/docs/emails.md) generated by Kimai 2:
+You need to adjust your `.env` file and add your `from` address for [all emails](https://www.kimai.org/documentation/emails.html) generated by Kimai 2:
 ```
 MAILER_FROM=kimai@example.com
 ```