[web] Added external doc links.

web/content/docs/_index.md

@@ -3,22 +3,42 @@ title = "Documentation"
 
 [[sections]]
 name = "Quickstart"
-slug = "quickstart"
+url = "/docs/quickstart"
 text = "Download, install and run an OGS benchmark in 5 minutes! No development setup required."
 
 [[sections]]
 name = "Developer Guide"
-slug = "devguide"
+url = "/docs/devguide"
 text = "You want to contribute to the OpenGeoSys project or implement a custom feature? In the Developer Guide you will find everything to get you started into OpenGeoSys development. Experienced developers will find a comprehensive list of advanced development topics."
 
 [[sections]]
 name = "Selected Benchmarks"
-slug = "benchmarks"
+url = "/docs/benchmarks"
 text = "Basic benchmarks are explained and input files are provided to get you started in using OGS."
 
 [[sections]]
 name = "Tools"
-slug = "tools"
+url = "/docs/tools"
 text = "Helpful tools for pre- and postprocessing."
 
+[[sections]]
+name = "Data Explorer Manual"
+url = "https://jenkins.opengeosys.org/job/ufz/job/data_explorer_manual/job/master/lastSuccessfulBuild/artifact/DataExplorer-Manual.pdf"
+text = "Manual for the graphical user interface for OpenGeoSys, the Data Explorer."
+
+[[sections]]
+name = "Source code documentation"
+url = "http://doxygen.opengeosys.org/"
+text = "The OGS source code documentation is automatically generated right from the code itself via Doxygen and is nice reference while coding."
+
+[[sections]]
+name = "Styleguide"
+url = "http://ufz.github.io/styleguide/cppguide.xml"
+text = "OpenGeoSys C++ Style Guide"
+
+[[sections]]
+name = "Mailing List"
+url = "https://groups.google.com/forum/#!forum/ogs-users"
+text = "The mailing lists for OpenGeoSys users and developers are a good place to ask question related to anything OGS."
+
 +++

web/layouts/section/docs.html

@@ -3,16 +3,23 @@
     {{ .Content }}
       <div class="flex flex-wrap">
       {{ range .Params.sections }}
-        <div class="w-1/3 p-2 my-3">
+        <div class="w-full sm:w-1/2 lg:w-1/3 p-2 my-3">
           <div class="p-2">
             <div class="tc">
-              <h2 class="text-center"><a href="/docs/{{ .slug }}">{{ .name }}</a></h1>
+              <h2 class="text-center">
+                <a href="{{ .url }}">
+                  {{ .name }}
+                  {{ $url_first_char := substr .url 0 1 }}
+                  {{ if not (eq $url_first_char "/") }}
+                    <i class="text-xs align-top fas fa-external-link-alt"></i>
+                  {{ end }}
+                </a>
+              </h1>
               <hr>
             </div>
             <p class="1h-copy measure center f6 black-70">{{ .text }}</p>
           </div>
         </div>
-
       {{ end }}
       </div>