Lang: Fix typo and remove setence

doc.zih.tu-dresden.de/docs/data_lifecycle/workspaces.md

@@ -251,7 +251,7 @@ workspace is not forgotten.
 
 #### Send Daily Reminder
 
-A e-mail reminder can be set at workspace allocation using
+An e-mail reminder can be set at workspace allocation using
 
 ```console
 ws_allocate --reminder=<N> --mailaddress=<mail> [...]
@@ -282,8 +282,6 @@ The command `ws_send_ical` sends you an ical event on the expiration date of a s
    ws_send_ical --filesystem=<filesystem> --mail=<e-mail-address> --workspace=<workspace name>
    ```
 
-It is possible to set an e-mail reminder using even you forgot it at allocation time.
-
 ### Deletion of a Workspace
 
 To delete a workspace use the `ws_release` command. It is mandatory to specify the name of the