Fixed scala docs in docs

docs/developer/scaladocs.md

+* [Scaladocs 0.5.0](https://humgenprojects.lumc.nl/sasc/scaladocs/v0.5.0#nl.lumc.sasc.biopet.package)
+* [Scaladocs 0.4.0](https://humgenprojects.lumc.nl/sasc/scaladocs/v0.4.0#nl.lumc.sasc.biopet.package)

mkdocs.yml

@@ -45,9 +45,7 @@ pages:
     - Example pipeline: 'developer/example-pipeline.md'
     - Example tool: 'developer/example-tool.md'
     - Example pipeable: 'developer/example-pipeable.md'
-    - Scala docs:
-      - 0.5.0: '/sasc/scaladocs/v0.5.0.0'
-      - 0.4.0: '/sasc/scaladocs/v0.4.0.0'
+    - Scala docs: 'developer/scaladocs.md'
 #- ['developing/Setup.md', 'Developing', 'Setting up your local development environment']
 #theme: readthedocs
 repo_url: https://github.com/biopet/biopet