Documentation i18n title

frontend/src/app/components/docs/docs.component.html

@@ -1,7 +1,7 @@
 <div class="container-xl">
   <div class="text-center">
 
-    <h2>Documentation</h2>
+    <h2 i18n="documentation.title">Documentation</h2>
 
     <ul ngbNav #nav="ngbNav" [(activeId)]="activeTab" class="nav-tabs">