Transfer Mission and HIFIS Structure

Transferred the descriptive stuff of HIFIS. Not beautiful but should contain the most important information. Second page/mission needs to be designed and discussed with AS,TH -> #11 (closed)

@frust45 can you please check how to make the link button to mission ("HIFIS MISSION") on the main page less dark? Or use different way to make this part clickable.

Closes #7 (closed)

mission/index.md

@@ -5,20 +5,35 @@ excerpt:
     Overview of HIFIS Motivation, Structure and Governance.
 ---
 
-## Intention of HIFIS
+## Motivation for HIFIS
 The top position of Helmholtz research is increasingly based on cross-centre and international cooperation and common access to data treasure and -services. At the same time the significance of a sustainable software development for the research process is recognised.
 
 HIFIS aims to ensure an excellent information environment for outstanding research in all Helmholtz research fields and a seamless and performant IT-infrastructure connecting knowledge from all centres. It will build a secure and easy-to-use collaborative environment with efficiently accessible ICT services from anywhere. HIFIS will also support the development of research software with a high level of quality, visibility and sustainability.
 
+* Link to proposal
+* Participating centers
+* Publication
+* Documentation / Techdoc / Manuals
+
+## Roadmap
+Roadmap
+
+## Partners
+Helmholtz Incubator
+Other Partners
+
+
+
 ## Internal structure
 To achieve its goals, HIFIS works in three Competence Clusters which are distributed throughout different Helmholtz research centers, 
 a Cloud Services Cluster (a federated platform for proven first class cloud services), 
 a Backbone Services Cluster (high-performance trusted network infrastructure with unified basic services) and 
 a Software Services Cluster (platform, training and support for high-quality, sustainable software development)
 
-See [here] (competence_centers) for more detailed description of competence centers.
+See [here](competence_centers) for more detailed description of competence centers.
 
 ## External supervision
-[Governance] (governance)
+[Governance](governance)
+