Mission statement, extendable

• Mission statement in extendable headline

_includes/frontpage/title-content.html

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     <h1>Federated IT for Science</h1>
-    <p>HIFIS ensures an excellent information environment for outstanding research in all Helmholtz research fields.
+    <p>Our mission is to strengthen and develop the ICT competences of the whole Helmholtz Association. 
+    We want to support you - as a scientist, Helmholtz employee or stakeholder of research projects.
+    </p><p>
     <a href="{{ '/motivation' | relative_url }}" class="btn btn-success">Find out more on the aims of HIFIS</a>
     </p>
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