Merge pull request #63 from davidepettinari/documentation

Update reference style

Author: SteSeg

docs/source/_config.yml

@@ -29,3 +29,8 @@ repository:
 html:
   use_issues_button: true
   use_repository_button: true
+
+# Set citation style to numeric
+sphinx:
+  config:
+    bibtex_reference_style: label

docs/source/oktavian_al_benchmark.md

@@ -1,14 +1,9 @@
 # Oktavian Aluminium Benchmark
-TEST
 
 ## CAD
-:::{raw} html
+The following link opens an interactive 3D visualization of the CAD model used in the benchmark:
 
-<iframe src="../viewers/oktavian_a.html"
-        width="100%" height="600px"
-        style="border:none;"></iframe>
-
-:::
+[View interactive 3D model](https://eepeterson.github.io/openmc_fusion_benchmarks/viewers/oktavian_a.html)
 
 ## Results