some more corrections

cloud-platform.md

@@ -42,4 +42,4 @@ Later versions will contain more enhanced features like
 If you have suggestions about additional use cases and functionality, please feel free to contact us. We appreciate all input from the user community!
 
 ## Contact us:
-[contact@hifis.net](contact@hifis.net)
+[contact@hifis.net](mailto:contact@hifis.net)

contact.md

@@ -18,4 +18,4 @@ lang_ref: contact
 [Helmholtz-Zentrum Dresden-Rossendorf (HZDR)](https://www.hzdr.de/)
 
 ## Mail:
-[contact@hifis.net](contact@hifis.net)
+[contact@hifis.net](mailto:contact@hifis.net)

faq.md

@@ -34,7 +34,7 @@ and
 [Support platform](https://software.hifis.net/services/consulting) is already available.
 
 #### [Anything I can do to get things done faster?][4]
-We have several pilot cloud services and installations running. Please [contact our HIFIS Office](mailto:office@hifis.net) if you need urgent assistance.
+We have several pilot cloud services and installations running. Please [contact us](mailto:contact@hifis.net) if you need urgent assistance.
 
 #### [Where can I register for a newsletter?][6]
 Currently, we do not send newsletters as it would imply for us to collect large amounts of personal data. To stay updated, you are invited to check out 
@@ -46,7 +46,7 @@ besides, of course, regularly checking our website and [**news section!**](news)
 #### [My Helmholtz center is not directly involved into HIFIS. Do you still help me?][5]
 Yes, of course. HIFIS is a Helmholtz-wide platform that aims to
 provide offers for **all** Helmholtz centers. 
-Please [contact our HIFIS Office](mailto:office@hifis.net) or any of the [HIFIS team members](team) to get assistance.
+Please [contact us](mailto:contact@hifis.net) or any of the [HIFIS team members](team) to get assistance.
 
 
 #### [How should I acknowledge HIFIS assistance in a publication?][10]