[web] Added redirects (aliases) from docs subsections to its first

entries.

web/content/docs/benchmarks/elliptic/groundwater-flow-neumann.md

@@ -3,6 +3,7 @@ date = "2017-01-31T14:27:10+01:00"
 author = "Dmitri Naumov"
 title = "Groundwater flow (Neumann)"
 
+aliases = [ "/docs/benchmarks/" ] # First benchmark page
 +++
 
 ## Equations

web/content/docs/devguide/getting-started/introduction.md

@@ -3,8 +3,9 @@ date = "2017-01-14T22:51:41+01:00"
 title = "Welcome!"
 author = "Lars Bilke"
 weight = 1
-# next = "prerequisites.md"
 
+# next = "prerequisites.md"
+aliases = [ "/docs/devguide/" ] # First devguide page
 +++
 
 In this help section you will find everything related to development. Please walk through the Getting Started-section **step by step**. At the end you will have the latest OGS source code, the OGS finite element simulator compiled and everything you need to start developing for OGS! This first section of the developer guide will give you just a brief introduction, make sure to read the more advanced topics after you have familiarized yourself with the basics.