pointing sys-admins email adress to mailto

external/exchange-channels/duma.md

@@ -70,4 +70,4 @@ Go to the help section of your access link
 
 And follow the steps in the **Using the command line** section.
 
-<br/> ![Alt](../../external/img/duma_cli_tokens.png "Title") <br/><br/><br/>
+<br/> ![Alt](../../external/img/duma_cli_tokens.png "Title") <br/><br/><br/>
\ No newline at end of file

external/exchange-channels/owncloud.md

@@ -33,5 +33,3 @@ When sharing research data, one should observe the following guidance using Ownc
 
 
  **IMPORTANT NOTE: Whenever the LCSB shares an ownCloud folder with you (collaborator), the share password will be reachable via link, which will expire. Therefore you should make a record of your password once you view it.**
-
-